CN103442486B - High-luminance LED strobe lamp - Google Patents
High-luminance LED strobe lamp Download PDFInfo
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- CN103442486B CN103442486B CN201310375333.8A CN201310375333A CN103442486B CN 103442486 B CN103442486 B CN 103442486B CN 201310375333 A CN201310375333 A CN 201310375333A CN 103442486 B CN103442486 B CN 103442486B
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Abstract
The invention relates to a high-luminance LED strobe lamp and belongs to the technical field of light source control. The high-luminance LED strobe lamp comprises a strobe/burst-strobe synchronous detection circuit. A port of a wiring terminal J2 in the circuit is respectively connected with a positive electrode and a negative electrode of a transient voltage suppression diode TVS1; the positive electrode of the transient voltage suppression diode TVS1 is connected in series with a diode D2 and then connected with an emitter of a triode Q1, and meanwhile the positive electrode of the transient voltage suppression diode TVS1 is connected with a resistor R8 in series and then connected with a base of a triode Q3; a base of the triode Q1 is connected with a resistor in series and then connected with a base of a triode Q2, both a collector of the triode Q1 and a collector of the triode Q3 are connected with an input port of a photoelectric coupler U2, and an output port of the photoelectric coupler U2 is connected with an input port of a master controller; a collector of the triode Q2 is connected with the base of the triode Q3, and an emitter of the triode Q2 and an emitter of the triode Q3 are connected and meanwhile grounded. A strobe control circuit controls strobe and burst strobe of the LED lamp, and thus the utilization rate of the light source and the quality of a snapshot photo are improved.
Description
Technical field
The invention belongs to light source control technical field, relate to a kind of LED, particularly relate to a kind of High-luminance LED strobe lamp effective with peripheral hardware sync rates.
Background technology
Under low-light (level) environment, video camera photo-sensitive cell synchronization noise is very large.In field of video monitoring, in order to obtain good picture quality low according under environment, secondary light source generally can be adopted to illuminate shooting area.Secondary light source can be divided into normal bright light filling, stroboscopic light filling, quick-fried sudden strain of a muscle light filling three kinds.Due to LED have that power consumption is low, advantage, the own extensive use in recent years such as long service life, brightness are high, sturdy and durable.The road monitoring light filling equipment that existing intelligent transportation field uses mainly uses normal bright light filling and quick-fried sudden strain of a muscle light filling two kinds of modes, but, the brightness of normal bright light filling mode is low, light filling weak effect and power consumption is large, caloric value is high, easily cause LED light to decline seriously, the life-span reduces greatly, can not reach the instructions for use of road monitoring; Quick-fried sudden strain of a muscle light filling be then video camera need grabgraf as time just light filling, glimmer as lightning, produce light pollution comparatively serious.And two kinds of light filling modes are all comparatively single, continuous light filling and highlighted candid photograph flash of light cannot be realized simultaneously, the requirement that light filling that road violation captures continuously required and captured the higher picture of quality requirement cannot be met.
The another kind of light filling mode that intelligent transportation field uses is stroboscopic light filling, there is brightness regulation convenient, the advantage that light pollution is few, apply more and more extensive, but because stroboscopic light filling lamp actual be light and shade alternation, every width image that its flicker needs guarantee synchronous with camera exposure to photograph is all bright, when field application such as electronic police, public security bayonet, intelligent monitorings, need to ensure that the every width image photographed should be all bright, therefore, adopt during stroboscopic light filling and need to solve the stroboscopic light filling problem synchronous with camera exposure.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, provides that a kind of brightness is high, anti-jamming effectiveness good, light source utilization rate is high and compatibility synchronous with peripheral hardware is strong High-luminance LED strobe lamp.
In order to solve above technical problem, the present invention relates to a kind of High-luminance LED strobe lamp, comprise lamp housing and be arranged on LED and the control device of lamp housing inside, LED is connected by wire with control device, and control device comprises master controller, the stroboscopic/quick-fried sudden strain of a muscle sync detection circuit be connected with master controller and PWM light adjusting circuit.
Stroboscopic/quick-fried sudden strain of a muscle sync detection circuit comprises binding post J2, stroboscopic sync detection circuit and quick-fried sudden strain of a muscle sync detection circuit.
Stroboscopic sync detection circuit comprises transient voltage suppressor diode TVS1, diode D2, photoelectrical coupler U3, triode Q1, triode Q2, triode Q3, the port 3 of binding post J2 is connected with the strobe signal of outside imaging device or grab signal, and the port one of binding post J2 is connected with transient voltage suppressor diode TVS1 negative pole; Positive pole and the diode D2 of transient voltage suppressor diode TVS1 connect and are connected with the emitter of triode Q1 afterwards, and meanwhile, positive pole and the resistance R8 of transient voltage suppressor diode TVS1 connect and be connected with the base stage of triode Q3 afterwards;
The base stage of triode Q1 is in series with a resistor to be connected with the base stage of triode Q2 afterwards, the collector electrode of triode Q1 is connected with the collector electrode of triode Q3,, be connected with the input port of photoelectrical coupler U3, the output port of photoelectrical coupler U3 is connected with the input port of master controller meanwhile; The collector electrode of triode Q2 is connected with the base stage of triode Q3, and the emitter of triode Q2 is connected rear ground connection simultaneously with the emitter of triode Q3.
Quick-fried sudden strain of a muscle sync detection circuit comprises transient voltage suppressor diode TVS2, diode D4, photoelectrical coupler U6, triode Q4, triode Q5, triode Q6, the port 2 of binding post J2 is connected with the quick-fried glitch of outside image-taking device, and the port one of binding post J2 is connected with transient voltage suppressor diode TVS2 negative pole; Positive pole and the diode D4 of transient voltage suppressor diode TVS2 connect and are connected with the emitter of triode Q5 afterwards, and meanwhile, positive pole and the resistance R22 of transient voltage suppressor diode TVS2 connect and be connected with the base stage of triode Q4 afterwards;
The base stage of triode Q5 is in series with a resistor to be connected with the base stage of triode Q6 afterwards, the collector electrode of triode Q4 is connected with the collector electrode of triode Q4,, be connected with the input port of photoelectrical coupler U6, the output port of photoelectrical coupler U6 is connected with the input port of master controller meanwhile; The collector electrode of triode Q6 is connected with the base stage of triode Q4, and the emitter of triode Q4 is connected rear ground connection simultaneously with the emitter of triode Q6.
The technical scheme that the present invention limits further is: also comprise the electric main zero cross detection circuit be connected with master controller, electric main zero cross detection circuit comprises binding post J1, diode D1, piezo-resistance RV1 and photoelectrical coupler U1, the receiving port of binding post J1 is connected with the alternating current zero passage synchronous signal output end mouth of external equipment, the port one of binding post J1 is connected with the two ends of piezo-resistance RV1 respectively with port 2, in parallel with the both positive and negative polarity of diode D1 after the two ends difference contact resistance R1 and resistance R2 of piezo-resistance RV1, the both positive and negative polarity of diode D1 is connected with the input port of photoelectrical coupler U1, the output port of photoelectrical coupler U1 is connected with master controller input pin.
Further, the RS485 communication interface be connected with master controller is also comprised.
Further, also comprise the temperature sensing circuit be connected with master controller, temperature sensing circuit is welded on aluminium base, and is prepended in lamp housing cloche.Temperature sensor is thermistor, and temperature sensing circuit comprises resistance R14, precision resistance R15 and thermistor R16, and precision resistance R15 and thermistor R16 forms bleeder circuit, is connected after bleeder circuit contact resistance R14 with the master controller after lamp housing.
Further, also comprise the luminance detection circuit be connected with master controller, luminance detection circuit is welded on aluminium base, and is prepended in lamp housing cloche.Luminance sensor is photodiode, and luminance detection circuit comprises luminance sensor D3, resistance R17 and precision resistance R18, and luminance sensor D3 and precision resistance R18 forms bleeder circuit, is connected after bleeder circuit contact resistance R17 with the master controller after lamp housing.
Further, also comprise constant-current drive circuit, constant-current drive circuit is connected with master controller by PWM light adjusting circuit.
Further, the pwm signal of PWM light adjusting circuit is that first-harmonic and modulating wave synthesize, first-harmonic is the automatic frequency multiplication of the strobe signal that electric main frequency or high-definition camera export, after frequency multiplication, frequency range is between 60-100Hz, eliminate human eye perceives light flash phenomenon and ensure stroboscopic and CCTV camera imaging Complete Synchronization, reach best light filling effect, the high-frequency signal of described modulating wave to be duty ratio be 0-255, for controlling the brightness of single stroboscopic.
Further, LED adopts high-powered LED lamp, the equal TVS transient voltage suppressor diode in parallel of high-powered LED lamp and series connection PTC resettable fuse.
Further, also comprise control device power supply, control device power supply is 24V-24V Switching Power Supply, and the first DC power supply of Switching Power Supply is converted into 5V DC power supply after DC-DC converter conversion, filtering.
The invention has the beneficial effects as follows: what the present invention used frequent flashing control circuit orderly carries out stroboscopic and glisten controlling to high-powered LED lamp, carries out high intense flash candid photograph, not only increase the utilance of light source and improve the quality of photo while continuous light filling; The present invention utilizes industrial frequency AC circuit as exposure sync and the synchronous collective reference source of stroboscopic, makes external equipment and this High-luminance LED strobe lamp realize wireless connections; Use stroboscopic/quick-fried sudden strain of a muscle triggering signal testing circuit to make the present invention stronger with the compatibility of all kinds of high definition cameras on the market simultaneously; The pwm signal of pwm signal light adjusting circuit transmission of the present invention is that first-harmonic and modulating wave synthesize, human eye perceives light flash phenomenon can be eliminated after the automatic frequency multiplication of first-harmonic and ensure stroboscopic and monitoring camera imaging Complete Synchronization, simultaneously, modulating wave is for controlling the brightness of single stroboscopic, under quick-fried glitch triggering situation, LED generates strobe pulse signal according to the phase place preset and flash time length, glistens with high-high brightness, the brightest when ensureing to capture.The present invention also fundamentally solves the problems such as the power consumption that high-powered LED lamp also exists always is large, caloric value is high, light decay is serious, the life-span is short.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is observing and controlling theory structure block diagram of the present invention.
Fig. 3 is the zero cross detection circuit of electric main of the present invention.
Fig. 4 is stroboscopic of the present invention/quick-fried sudden strain of a muscle circuits for triggering.
Fig. 5 is the circuit of constant-current driven module of the present invention.
Fig. 6 is temperature sensing circuit of the present invention.
Fig. 7 is luminance detection circuit of the present invention.
Fig. 8 is remote control module circuit of the present invention.
Fig. 9 is DC-DC power source circuit of the present invention.
Embodiment
Embodiment 1
The present invention relates to a kind of High-luminance LED strobe lamp, the present embodiment provide a kind of energy-saving LED light compensating lamp, as shown in Figure 1, comprise lamp housing 1, and be located at the LED aluminum base plate 2 of lamp housing 1 end, the rear portion of lamp housing 1 is provided with Switching Power Supply 7 and stroboscopic controller 3; The face bonding of LED aluminum base plate 2 is connected to some groups of large-power LED light beads and constant-current driven module 4, photodiode 5 and thermistor 6, often organizes equal TVS transient voltage suppressor diode in parallel and series connection PTC resettable fuse in LED lamp bead 4.
This energy-saving LED light compensating lamp adopts photodiode as brightness detecting element of the present invention, photodiode can be prepended to lamp housing, without the need to as existing light compensating lamp, at lamp body rear portion, light-sensitive element is placed in punching, the characteristic that the present invention simultaneously utilizes photodiode to respond fast, the light can distinguishing sunlight and self send, realizing daybreak turns off the light, and is easy to safeguard.
System theory of constitution block diagram of the present invention as shown in Figure 2, power output end is divided into first-class power supply and the second DC power supply, first DC power supply is connected to stroboscopic isochronous controller, second DC power supply is connected to the power input of LED lamp bead by constant-current driven module, the signal output part of stroboscopic controller is connected with LED lamp bead by constant-current driven module, stroboscopic controller comprises stroboscopic/quick-fried sudden strain of a muscle triggering signal testing circuit, electric main zero cross detection circuit, microprocessor, light intensity detection circuit, temperature sensing circuit, RS485 communication interface and pwm signal light adjusting circuit, stroboscopic/the input of quick-fried sudden strain of a muscle sync detection circuit, output connect synchronous signal input end and the microprocessor of peripheral hardware respectively, input, the output of electric main zero cross detection circuit connect AC power and microprocessor respectively, RS485 communication interface is connected with microprocessor, luminance detection circuit is connected the input of microprocessor respectively with the output of temperature sensing circuit, and luminance detection circuit is connected photodiode and thermistor respectively with the input of temperature sensing circuit, microprocessor-based control output connects constant-current driven module by pwm signal light adjusting circuit.
The pwm signal of pwm signal light adjusting circuit transmission is that first-harmonic and modulating wave synthesize, first-harmonic is the automatic frequency multiplication of the strobe signal that electric main frequency or high definition camera export, after frequency multiplication, frequency range is between 60-100Hz, human eye perceives light flash phenomenon can be eliminated and ensure stroboscopic and CCTV camera imaging Complete Synchronization, reach best light filling effect, the high-frequency signal of described modulating wave to be duty ratio be 0-255, for controlling the brightness of single stroboscopic, this High-luminance LED strobe lamp can arrange different parameters as required, control the brightness of LED stroboscopic, simultaneously under quick-fried glitch triggering situation, LED generates strobe pulse signal according to the phase place preset and flash time length, glisten with high-high brightness, the brightest when ensureing to capture.
Electric main zero cross detection circuit as shown in Figure 3 electric main zero cross detection circuit comprises the electric main zero cross detection circuit be connected with master controller, electric main zero cross detection circuit comprises binding post J1, diode D1, piezo-resistance RV1 and photoelectrical coupler U1, the port of binding post J1 is connected with the alternating current zero passage synchronous signal output end mouth of external equipment, the port one of binding post J1 is connected with the two ends of piezo-resistance RV1 respectively with port 2, in parallel with the both positive and negative polarity of diode D1 after the two ends difference contact resistance R1 and resistance R2 of piezo-resistance RV1, the both positive and negative polarity of diode D1 is connected with the input port of photoelectrical coupler U1, the output port of photoelectrical coupler U1 is connected with master controller input pin.
Stroboscopic/quick-fried sudden strain of a muscle triggering signal testing circuit as shown in Figure 4, stroboscopic/quick-fried sudden strain of a muscle sync detection circuit comprises lamp housing and is arranged on LED and the control device of lamp housing inside, LED is connected by wire with control device, and control device comprises master controller, the stroboscopic/quick-fried sudden strain of a muscle sync detection circuit be connected with master controller and PWM light adjusting circuit.
Stroboscopic/quick-fried sudden strain of a muscle sync detection circuit comprises binding post J2, stroboscopic sync detection circuit and quick-fried sudden strain of a muscle sync detection circuit.
Stroboscopic sync detection circuit comprises transient voltage suppressor diode TVS1, diode D2, photoelectrical coupler U3, triode Q1, triode Q2, triode Q3, the port 3 of binding post J2 is connected with the strobe signal of outside imaging device or grab signal, and the port one of binding post J2 is connected with transient voltage suppressor diode TVS1 negative pole; Positive pole and the diode D2 of transient voltage suppressor diode TVS1 connect and are connected with the emitter of triode Q1 afterwards, and meanwhile, positive pole and the resistance R8 of transient voltage suppressor diode TVS1 connect and be connected with the base stage of triode Q3 afterwards.
The base stage of triode Q1 is in series with a resistor to be connected with the base stage of triode Q2 afterwards, the collector electrode of triode Q1 is connected with the collector electrode of triode Q3,, be connected with the input port of photoelectrical coupler U3, the output port of photoelectrical coupler U3 is connected with the input port of master controller meanwhile; The collector electrode of triode Q2 is connected with the base stage of triode Q3, and the emitter of triode Q2 is connected rear ground connection simultaneously with the emitter of triode Q3.
Quick-fried sudden strain of a muscle sync detection circuit comprises transient voltage suppressor diode TVS2, diode D4, photoelectrical coupler U6, triode Q4, triode Q5, triode Q6, the port 2 of binding post J2 is connected with the quick-fried glitch of outside image-taking device, and the port one of binding post J2 is connected with transient voltage suppressor diode TVS2 negative pole; Positive pole and the diode D4 of transient voltage suppressor diode TVS2 connect and are connected with the emitter of triode Q5 afterwards, and meanwhile, positive pole and the resistance R22 of transient voltage suppressor diode TVS2 connect and be connected with the base stage of triode Q4 afterwards;
The base stage of triode Q5 is in series with a resistor to be connected with the base stage of triode Q6 afterwards, the collector electrode of triode Q4 is connected with the collector electrode of triode Q4,, be connected with the input port of photoelectrical coupler U6, the output port of photoelectrical coupler U6 is connected with the input port of master controller meanwhile; The collector electrode of triode Q6 is connected with the base stage of triode Q4, and the emitter of triode Q4 is connected rear ground connection simultaneously with the emitter of triode Q6.
In stroboscopic circuit, when the port 3 of binding post J2 is high level, the base stage of triode Q3 is high level, simultaneously because the collector electrode of triode Q3 is connected with photoelectrical coupler U3, in photoelectrical coupler U3, VCC is high level, therefore the current collection of triode Q3 very high level, at this moment the emitter saturation conduction of triode, high level simultaneously on triode Q1 collector electrode is higher than level on emitter, triode Q1 ends, at this moment the input being transferred to photoelectrical coupler U3 is low level, and controller receives low level signal.
When the port 3 of binding post J2 is low level, the base stage of triode Q3 is low level, triode Q3 ends, the transmitting of triode Q1 is very low, base stage and collector electrode are high level, triode Q1 saturation conduction, the input being at this moment transferred to photoelectrical coupler U3 is low level, and controller receives low level signal.
This stroboscopic/quick-fried sudden strain of a muscle controller can detect the quick-fried glitch of a road strobe signal and a road that high definition camera exports simultaneously, difference according to signal controls LED brightness, stroboscopic and the grab signal of circuit middle connecting terminal J2 and outside imaging device are connected, the low and high level triggering signal of external camera, low level triggering signal, rising edge triggering signal, trailing edge signal can be detected, there is fabulous circuit compatibility.
As shown in Figure 5, the input of controllable constant-current driving chip U2 pin EN exports from the pwm signal of frequent flashing control the circuit of LED constant-current driven module, and when EN is high level, the OUT pin of U2 exports as low, and LED lamp bead string is lit, and its driving current value is determined by R6.The EN of U2 is connected to reference to ground by R5, ensures to automatically shut down output without during pwm signal.TVSn1 is the TVS transient voltage suppressor diode being connected in parallel on one group of LED, can realize LED overvoltage protection.PTCn1 is that the PTC resettable fuse being connected on one group of LED carries out current-limiting protection, prevents LED from powering on breakdown.The present invention comprises the above-mentioned constant-current driven module of many groups.
As shown in Figure 6, the present invention adopts thermistor R16 as temperature sensor to temperature sensing circuit, and this element is welded on the aluminium base in lamp housing front glass cover.Precision resistance R15 and temperature sensor R14 and composition bleeder circuit, its voltage is wired to the master controller after lamp housing by resistance R14.Master controller, through AD conversion, detects lamp housing current temperature value.Main control unit, according to the difference of surveyed lamp body temperature, adopts the method for preheating to realize low temperature power-on protection and fall lower powered mode realizing high temperature protection.
As shown in Figure 7, the present invention adopts photodiode D3 to be luminance sensor to luminance detection circuit, and luminance sensor D3 and precision resistance R18 forms bleeder circuit, and its voltage is wired to the master controller after lamp housing by resistance R17.Master controller, through AD conversion, detects present intensity value.Photodiode can be prepended to lamp housing, without the need to as existing light compensating lamp, at lamp body rear portion, light-sensitive element is placed in punching, the characteristic that the present invention simultaneously utilizes photodiode to respond fast, the light can distinguishing sunlight and self send, prevent self stroboscopic or other short time light interference, be easy to safeguard.
As shown in Figure 8, the RS485 module of stroboscopic controller is used for carrying out communication with longer-distance equipment circuit for remotely controlling of the present invention, the parameters such as setting, the flash time reading light fixture and brightness, and which can be taked to control energy-conservation light compensating lamp synchronization flash.
As shown in Figure 9, frequent flashing control power supply is 24V-24V Switching Power Supply to DC-DC power source circuit, and the first DC power supply of Switching Power Supply is converted into 5V DC power supply after DC-DC converter conversion, filtering.
The present invention compares prior art, do not use field sync signal synchronous to control stroboscopic, but utilize power frequency square wave as exposure sync and the synchronous collective reference source of stroboscopic, under this method of synchronization, realize wireless connections between external equipment and this High-luminance LED strobe lamp.
In addition to the implementation, the present invention can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of application claims.
Claims (9)
1. a High-luminance LED strobe lamp, comprise lamp housing and be arranged on LED and the control device of described lamp housing inside, described LED is connected by wire with described control device, it is characterized in that: described control device comprises master controller, the stroboscopic be connected with described master controller/quick-fried sudden strain of a muscle sync detection circuit, zero cross detection circuit and PWM light adjusting circuit, the output of described zero cross detection circuit is connected to described master controller, utilize power frequency square wave as the synchronous collective reference source of exposure sync and stroboscopic, the synchronizing signal of peripheral hardware inputs described stroboscopic/quick-fried sudden strain of a muscle sync detection circuit, the output of described stroboscopic/quick-fried sudden strain of a muscle sync detection circuit is connected to described master controller, the signal that described master controller exports according to described zero cross detection circuit and the signal controlling output that described stroboscopic/quick-fried sudden strain of a muscle sync detection circuit exports connect constant-current driven module by described PWM light adjusting circuit,
Described stroboscopic/quick-fried sudden strain of a muscle sync detection circuit comprises binding post J2, stroboscopic sync detection circuit and quick-fried sudden strain of a muscle sync detection circuit,
Described stroboscopic sync detection circuit comprises transient voltage suppressor diode TVS1, diode D2, photoelectrical coupler U3, triode Q1, triode Q2, triode Q3, the port 3 of described binding post J2 is connected with the strobe signal of outside imaging device or grab signal, and the port one of described binding post J2 is connected with described transient voltage suppressor diode TVS1 negative pole; Positive pole and the described diode D2 of described transient voltage suppressor diode TVS1 connect and are connected with the emitter of described triode Q1 afterwards, and meanwhile, positive pole and the resistance R8 of described transient voltage suppressor diode TVS1 connect and be connected with the base stage of triode Q3 afterwards;
Base stage and resistance R7 and the resistance R10 of described triode Q1 connect and are connected with the base stage of described triode Q2 afterwards, the collector electrode of described triode Q1 is connected with the collector electrode of described triode Q3, simultaneously, be connected with the input port of described photoelectrical coupler U3, the output port of described photoelectrical coupler U3 is connected with the input port of described master controller; The collector electrode of described triode Q2 is connected with the base stage of described triode Q3, and the emitter of described triode Q2 is connected rear ground connection simultaneously with the emitter of described triode Q3;
Transient voltage suppressor diode TVS2, diode D4, photoelectrical coupler U6, triode Q4, triode Q5, triode Q6 is comprised described in described quick-fried sudden strain of a muscle sync detection circuit, the port 2 of binding post J2 is connected with the quick-fried glitch of outside image-taking device, and the port one of described binding post J2 is connected with described transient voltage suppressor diode TVS2 negative pole; Positive pole and the described diode D4 of described transient voltage suppressor diode TVS2 connect and are connected with the emitter of described triode Q5 afterwards, and meanwhile, positive pole and the resistance R22 of described transient voltage suppressor diode TVS2 connect and be connected with the base stage of triode Q4 afterwards;
Base stage and resistance R21 and the resistance R24 of described triode Q5 connect and are connected with the base stage of described triode Q6 afterwards, the collector electrode of described triode Q4 is connected with the collector electrode of described triode Q4, simultaneously, be connected with the input port of described photoelectrical coupler U6, the output port of described photoelectrical coupler U6 is connected with the input port of described master controller; The collector electrode of described triode Q6 is connected with the base stage of described triode Q4, and the emitter of described triode Q4 is connected rear ground connection simultaneously with the emitter of described triode Q6.
2. a kind of High-luminance LED strobe lamp according to claim 1, it is characterized in that: also comprise the electric main zero cross detection circuit be connected with described master controller, described electric main zero cross detection circuit comprises binding post J1, diode D1, piezo-resistance RV1 and photoelectrical coupler U1, the port of described binding post J1 is connected with the alternating current zero passage synchronous signal output end mouth of external equipment, the port one of described binding post J1 is connected with the two ends of piezo-resistance RV1 respectively with port 2, in parallel with the both positive and negative polarity of diode D1 after the two ends difference contact resistance R1 and resistance R2 of described piezo-resistance RV1, the both positive and negative polarity of diode D1 is connected with the input port of photoelectrical coupler U1, the output port of described photoelectrical coupler U1 is connected with described master controller input pin.
3. a kind of High-luminance LED strobe lamp according to claim 1, it is characterized in that: also comprise the temperature sensing circuit be connected with described master controller, described temperature sensing circuit is welded on aluminium base, and be prepended in described lamp housing cloche, described temperature sensor is thermistor, described temperature sensing circuit comprises resistance R14, precision resistance R15 and thermistor R16, described precision resistance R15 and thermistor R16 forms bleeder circuit, is connected after described bleeder circuit connects described resistance R14 with the described master controller after described lamp housing.
4. a kind of High-luminance LED strobe lamp according to claim 1, it is characterized in that: also comprise the luminance detection circuit be connected with described master controller, described luminance detection circuit is welded on aluminium base, and be prepended in described lamp housing cloche, described luminance sensor is photodiode, described luminance detection circuit comprises luminance sensor D3, resistance R17 and precision resistance R18, described luminance sensor D3 and described precision resistance R18 forms bleeder circuit, is connected after described bleeder circuit connects described resistance R17 with the described master controller after described lamp housing.
5. a kind of High-luminance LED strobe lamp according to claim 1, is characterized in that: also comprise constant-current drive circuit, and described constant-current drive circuit is connected with described master controller by described PWM light adjusting circuit.
6. a kind of High-luminance LED strobe lamp according to claim 5, it is characterized in that: the pwm signal of described PWM light adjusting circuit is that first-harmonic and modulating wave synthesize, described first-harmonic is the automatic frequency multiplication of the strobe signal that electric main frequency or high definition camera export, after frequency multiplication, frequency range is between 60-100Hz, eliminate human eye perceives light flash phenomenon and ensure stroboscopic and CCTV camera imaging Complete Synchronization, reach best light filling effect, the high-frequency signal of described modulating wave to be duty ratio be 0-255, for controlling the brightness of single stroboscopic.
7. a kind of High-luminance LED strobe lamp according to claim 1, it is characterized in that: also comprise control device power supply, described control device power supply is 24V-24V Switching Power Supply, and the first DC power supply of described Switching Power Supply is converted into 5V DC power supply after DC-DC converter conversion, filtering.
8. a kind of High-luminance LED strobe lamp according to claim 1, is characterized in that: also comprise the RS485 communication interface be connected with described master controller.
9. a kind of High-luminance LED strobe lamp according to claim 1, is characterized in that: described LED adopts high-powered LED lamp, the equal TVSn1 transient voltage suppressor diode in parallel of described high-powered LED lamp and series connection PTCn1 resettable fuse.
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| CN201310375333.8A CN103442486B (en) | 2013-08-26 | 2013-08-26 | High-luminance LED strobe lamp |
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| CN201310375333.8A CN103442486B (en) | 2013-08-26 | 2013-08-26 | High-luminance LED strobe lamp |
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| CN103442486A (en) | 2013-12-11 |
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