CN106125545A - The photoprotection using illuminance threshold value and the detection of illuminance rate of increase controls device - Google Patents
The photoprotection using illuminance threshold value and the detection of illuminance rate of increase controls device Download PDFInfo
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- CN106125545A CN106125545A CN201610762046.6A CN201610762046A CN106125545A CN 106125545 A CN106125545 A CN 106125545A CN 201610762046 A CN201610762046 A CN 201610762046A CN 106125545 A CN106125545 A CN 106125545A
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- timing circuit
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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
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
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Abstract
The invention discloses a kind of photoprotection using illuminance threshold value and the detection of illuminance rate of increase and control device, including illuminance sensor, gather illuminance signal, illuminance signal is changed into voltage signal;Signal processing module, is converted into pulse signal by the rate of increase of illuminance signal, adjusts the amplitude of illuminance signal simultaneously;Timing logic control module includes multiple timing circuit, triggers timing controlled when illuminance signal rate of increase or illuminance amplitude reach threshold value;High-pressure modular, when its Enable Pin is opened, produces high pressure and acts on PLZT so that it is being in light transmission state;Voltage regulator module realizes high-pressure modular enable and high-pressure modular gives Voltage Cortrol function, follows illuminance intensity adjustments high-pressure modular output voltage, thus adjusts PLZT light transmittance;Discharge module, when illuminance signal or illuminance rate of increase signal trigger timing circuit, to the repid discharge of PLZT two ends, makes PLZT eyeglass be in light tight state.
Description
Technical field
The present invention relates to photoprotection control field, particularly relate to one and can be widely applied to laser light protective goggles, core flash head
The photoprotection based on illuminance threshold value, the detection of illuminance rate of increase of helmet controls device.
Background technology
In modern war, preferably use the photoprotection technology of automatic form.The commonly used antiglare helmet, the first is adopted
The cylinder sparking blast caused by photoelectric effect, promotes piston to be put down at about 10ms by protective glasses, plays " every flash of light wall "
Effect.The second be equipped with the antiglare protective eye lens of PLZT electrode slice in the case of at ordinary times as protective eye lens, and run into
During intense flash, the instantaneous transmitance of eyeglass almost reduces to 0, can preserve from by protective spectacles.Domestic photoprotection controls device, the most right
Light intensity detects, it is impossible to detect the rate of change of light intensity, can not realize automatically following illuminance, the most not
Quick antiglare purpose can be played.Apparatus of the present invention by the detection of light pulse is improved antiglare speed, and can be passed through
Detection to illuminance reaches the purpose of redundancy, improves safety.Also can realize automatically following illuminance, keep regulation model
Enclose interior illuminance.
Summary of the invention
The purpose of the present invention, is that proposing one can tackle light laser weapon, core flash of light to pilot, ground armed personnel
The injury of eyes, it is to avoid the photoprotection occurring light blind controls device.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of photoprotection using illuminance threshold value and the detection of illuminance rate of increase is provided to control device, including:
Illuminance sensor, gathers illuminance signal, illuminance signal is changed into illuminance voltage signal;
Signal processing module, uses a road signal two-way to process, and illuminance is believed by the first via according to illuminance voltage signal
Number rate of increase be converted to pulse signal, the second tunnel adjusts the amplitude of illuminance voltage signal, two-way process after signal respectively
Access timing logic control module;
Timing logic control module, including multiple timing circuits, when illuminance signal rate of increase or illuminance amplitude reach
Produce time control function to triggering timing circuit during threshold value respectively, close the Enable Pin of high-pressure modular;
High-pressure modular, is connected with PLZT eyeglass, and the Enable Pin of this high-pressure modular is opened and regulation voltage is to timing, and it is fixed to produce
Value high pressure also acts on PLZT eyeglass so that it is be in light transmission state;
Voltage regulator module, is connected with signal processing module, high-pressure modular, and this voltage regulator module follows illuminance intensity
The output voltage of regulation high-pressure modular, to adjust PLZT light transmittance;
Discharge module, is connected with high-pressure modular, when the Enable Pin of high-pressure modular is closed, fast to PLZT eyeglass both end voltage
Speed electric discharge is also reduced to 0, makes PLZT eyeglass be in light tight state.
In device of the present invention, described signal processing module includes voltage follower circuit, and respectively with this voltage
The peaker of follow circuit connection and signal conditioning circuit.
In device of the present invention, described timing logic controls to include the first timing circuit, the second timing circuit and the
Three timing circuits, this first timing circuit and the 3rd timing circuit connect, and the first timing circuit, the second timing circuit are all and high pressure
The Enable Pin of module connects, and the first timing circuit, the second timing circuit are also connected with the triggering end of discharge circuit, the 3rd timing
Circuit and the first timing circuit, voltage regulator module connect, and the first timing circuit timing triggers the 3rd timing circuit after completing, the
After three-circuit timing completes, trigger voltage adjusts circuit;When first timing circuit and the second timing circuit trigger, simultaneously to high pressure
Module output goes enable signal and export discharge signal to discharge circuit.
In device of the present invention, described voltage regulator module and signal conditioning circuit, the 3rd timing circuit, high pressing mold
The voltage given side of block connects.
In device of the present invention, the first timing circuit, the second timing circuit and the 3rd timing circuit are 555 timings
Circuit.
In device of the present invention, the timing of the first timing circuit and the second timing circuit is 1-2 second, the 3rd
The timing of timing circuit is 25-35 second.
The beneficial effect comprise that: the present invention, under daily illumination conditions, produces high pressure and acts on PLZT eyeglass,
PLZT eyeglass is made to be in light transmission state.When occurring illumination rate of increase to exceed defined threshold, trigger high-pressure modular and quickly put
Electricity, simultaneously closes off high-pressure modular and enables, make high-pressure modular no longer produce high pressure, make PLZT eyeglass be in light tight state.One
Interior output of fixing time gives voltage makes PLZT eyeglass produce the transmitance of direct ratio light intensity, thus realizes antiglare photoelectric eye
Dual redundant trigger.The present invention, by detection illuminance pulse signal, can be effectively improved the system speed of response, be also adopted by superfluous simultaneously
Remaining light illumination triggers, and is effectively improved security of system.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is that the embodiment of the present invention uses the photoprotection of illuminance threshold value and the detection of illuminance rate of increase to control the knot of device
Structure schematic diagram;
Fig. 2 is that another embodiment of the present invention uses the photoprotection of illuminance threshold value and the detection of illuminance rate of increase to control device
Structural representation.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
Along with military laser weapon performs to the most important effect in modern war, lasing safety is increasingly subject to
Pay attention to.This device can be widely applied to laser light protective goggles, core flash of light protective glasses in, for fighter plane, bomber boy
Body protects, it is possible to is applied in the individual protection of ground combat personnel, has good application prospect.Can also at civil area
It is applied to the occasion of electric control optical density, such as variable optical density filter lens, shutter, light gate array etc..
As it is shown in figure 1, the photoprotection of the employing illuminance threshold value of the embodiment of the present invention and the detection of illuminance rate of increase controls
Device includes:
Illuminance sensor 10, gathers illuminance signal, illuminance signal is changed into illuminance voltage signal;
Signal processing module 20, uses a road signal two-way to process, the first via according to illuminance voltage signal by illuminance
The rate of increase of signal is converted to pulse signal by peaker 22, and the second tunnel adjusts illuminance by signal conditioning circuit 23 and believes
Number amplitude, two-way process after signal be respectively connected to timing logic control module 30;
Timing logic control module 30 includes multiple timing circuit, when illuminance signal rate of increase or illuminance amplitude reach
Produce time control function to triggering timing circuit during threshold value, and close the Enable Pin of high-pressure modular;
High-pressure modular 50, is connected with PLZT eyeglass 70, and its Enable Pin is opened and regulation voltage is to timing, produces definite value high pressure
(such as 1000V) also acts on PLZT eyeglass 70 so that it is be in light transmission state;
Voltage regulator module 40 realizes high-pressure modular and gives Voltage Cortrol function, follows illuminance intensity adjustments high-pressure modular
Output voltage, thus adjust the light transmittance of PLZT eyeglass 70;
Discharge module 60, is connected with high-pressure modular 50, when the Enable Pin of high-pressure modular 50 is closed, to 70 liang of PLZT eyeglass
Terminal voltage repid discharge is also reduced to 0, makes PLZT eyeglass 70 be in light tight state.Discharge module 60 can be by high-voltage MOS pipe group
Become, when illuminance signal or illuminance rate of increase signal trigger timing circuit, open high-voltage MOS pipe, to PLZT eyeglass 70
Both end voltage repid discharge is also reduced to 0, makes PLZT eyeglass 70 be in light tight state.
As in figure 2 it is shown, in one embodiment of the present of invention, signal processing module 20 includes voltage follower circuit 21, differential
Circuit 22 and signal conditioning circuit 23.Voltage follower circuit 21 is connected with peaker 22 and signal conditioning circuit 23 respectively.
Preferably, timing logic control 30 includes the first timing circuit the 31, second timing circuit 32 and the 3rd timing circuit
33.This first timing circuit 31 is connected with the 3rd timing circuit 33.First timing circuit the 31, second timing circuit 32 and high pressing mold
The Enable Pin of block 50 connects.First timing circuit the 31, second timing circuit 32 also triggers end with discharge circuit 60 and is connected.
Preferably, described voltage regulator module 40 and signal adjustment circuit the 23, the 3rd timing circuit 33, high-pressure modular 50
Voltage given side connects.
Preferably, first timing circuit the 31, second timing circuit the 32, the 3rd timing circuit 33 all can be selected for 555 timing electricity
Road.The timing of the first timing circuit 31 and the second timing circuit 32 can be 1-2 second;During the timing of the 3rd timing circuit 33
Between can be 25-35 second.
In one specific embodiment of the present invention, under daily illumination conditions, high-pressure modular 50 produces 1000V high pressure, should
High pressure acts on PLZT eyeglass 70, makes PLZT eyeglass 70 be in light transmission state.When the pulse letter that the conversion of illuminance rate of increase occurs
When number exceeding defined threshold flash pulse or when illuminance amplitude exceedes defined threshold, illuminance sensor 10 produce corresponding tiltedly
Rate voltage, is adjusted to corresponding level signal by peaker 22, and this signal triggers the first timing circuit 31 and produces determining of 1-2S
Time high level signal, this signal trigger discharge circuit 60 high pressure is carried out repid discharge, simultaneously close off high-pressure modular 50 Enable Pin,
Making high-pressure modular 50 no longer produce 1000V high pressure, now PLZT eyeglass 60 is in light tight state, after 1-2S timing, under triggering
3rd timing circuit 33, produces the timing of 25-35 second (such as 30s), and in this timing, voltage-regulating circuit produces with illuminance
The voltage of direct ratio change, under this level, high-pressure modular 40 is followed signal conditioning circuit 23 output and is adjusted output voltage, makes PLZT mirror
Sheet 70 produces the transmitance (i.e. illuminance intensity and plzt light transmittance direct proportionality) of direct ratio light intensity.When illuminance exceedes rule
When determining threshold value, signal conditioning circuit 23 circuit produces high level signal triggering discharge circuit 60 and carries out 1000V high-voltage discharge, with
Time close high-pressure modular 50 enable, now PLZT eyeglass 70 is in light tight state, thus realizes antiglare photoelectric eye
Dual redundant trigger.
The program, by detection illuminance pulse signal, can be effectively improved the system speed of response, be also adopted by redundancy light simultaneously
Illumination triggers, and is effectively improved security of system.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (6)
1. the photoprotection using illuminance threshold value and the detection of illuminance rate of increase controls device, it is characterised in that including:
Illuminance sensor, gathers illuminance signal, illuminance signal is changed into illuminance voltage signal;
Signal processing module, uses a road signal two-way to process, the first via according to illuminance voltage signal by illuminance signal
Rate of increase is converted to pulse signal, and the second tunnel adjusts the amplitude of illuminance voltage signal, and the signal after two-way processes is respectively connected to
Timing logic control module;
Timing logic control module, including multiple timing circuits, when illuminance signal rate of increase or illuminance amplitude reach threshold
Trigger timing circuit during value respectively and produce time control function, close the Enable Pin of high-pressure modular;
High-pressure modular, is connected with PLZT eyeglass, and the Enable Pin of this high-pressure modular is opened and regulation voltage is to timing, produces definite value high
Press and act on PLZT eyeglass so that it is be in light transmission state;
Voltage regulator module, is connected with signal processing module, high-pressure modular, and this voltage regulator module follows illuminance intensity adjustments
The output voltage of high-pressure modular, to adjust PLZT light transmittance;
Discharge module, is connected with high-pressure modular, when the Enable Pin of high-pressure modular is closed, quickly puts PLZT eyeglass both end voltage
Electricity is also reduced to 0, makes PLZT eyeglass be in light tight state.
Device the most according to claim 1, it is characterised in that described signal processing module includes voltage follower circuit, with
And the peaker that is connected with this voltage follower circuit respectively and signal conditioning circuit.
Device the most according to claim 1, it is characterised in that described timing logic control to include the first timing circuit, the
Two timing circuits and the 3rd timing circuit, this first timing circuit and the 3rd timing circuit connect, the first timing circuit, second fixed
Time circuit be all connected with the Enable Pin of high-pressure modular, and the first timing circuit, the second timing circuit also with the triggering of discharge circuit
End connects, and the 3rd timing circuit and the first timing circuit, voltage regulator module connect, and the first timing circuit timing triggers after completing
3rd timing circuit, after tertiary circuit timing completes, trigger voltage adjusts circuit;First timing circuit and the second timing circuit touch
When sending out, go enable signal and export discharge signal to discharge circuit to high-pressure modular output simultaneously.
Device the most according to claim 2, it is characterised in that described voltage regulator module and signal conditioning circuit, the 3rd
Timing circuit, the voltage given side of high-pressure modular connect.
Device the most according to claim 3, it is characterised in that the first timing circuit, the second timing circuit and the 3rd timing
Circuit is 555 timing circuits.
Device the most according to claim 3, it is characterised in that the first timing circuit and the timing of the second timing circuit
For 1-2 second, the timing of the 3rd timing circuit was 25-35 second.
Priority Applications (1)
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CN201610762046.6A CN106125545B (en) | 2016-08-29 | 2016-08-29 | Light protection control device adopting illuminance threshold and illuminance increase rate detection |
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CN201610762046.6A CN106125545B (en) | 2016-08-29 | 2016-08-29 | Light protection control device adopting illuminance threshold and illuminance increase rate detection |
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CN106125545A true CN106125545A (en) | 2016-11-16 |
CN106125545B CN106125545B (en) | 2023-02-24 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110597152A (en) * | 2019-10-21 | 2019-12-20 | 航宇救生装备有限公司 | Strong flash prevention lens switch state self-adaptive control circuit based on microcontroller |
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CN110597152A (en) * | 2019-10-21 | 2019-12-20 | 航宇救生装备有限公司 | Strong flash prevention lens switch state self-adaptive control circuit based on microcontroller |
CN110597152B (en) * | 2019-10-21 | 2024-04-30 | 航宇救生装备有限公司 | Strong-flash-preventing lens switch state self-adaptive control circuit based on microcontroller |
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