CN101790267B - Bionic synchronous signal lamp and control circuit thereof - Google Patents
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Abstract
The invention relates to a control circuit of a bionic synchronous signal lamp, which is connected with an LED light source group and comprises a synchronous signal control module and an LED driving module, wherein the synchronous signal control module comprises a synchronous signal generating module used for generating and transmitting an infrared synchronous signal, a synchronous signal receiving module used for receiving the infrared synchronous signal, a multivibrator circuit which is used for generating a PWM signal and adjusting the PWM signal according to the infrared synchronous signal; the PWM signal controls the LED driving module to supply power for the LED light source group in an intermittent way; and the synchronous signal generating module generates and transmits the infrared synchronous signal when the LED light source group lightens. The invention also relates to the bionic synchronous signal lamp which does not need a synchronous cable and other accessory equipment such as a centralized-control box and the like; the number of the bionic synchronous signal lamps is not limited; and the bionic synchronous signal lamp has better fault tolerance, no electromagnetic radiation pollution, low cost and flexible installation.
Description
Technical field
The present invention relates to the signal lamp technical field, more particularly, relate to a kind of bionic synchronous signal lamp and control circuit thereof.
Background technology
Now, synchronous signal lamp is widely used, when producing fault as certain section road, adopts synchronous signal lamp to carry out failure identification etc. temporarily.Generally, the synchronizing signal of synchronous signal lamp is the unified synchronizing signal that a host broadcast formula sends, and other synchronous signal lamp receives this synchronizing signal to glimmer, and saying of image led a band as a commander.Synchronous signal lamp is in the market mainly realized the transmission of synchronizing signal by cable or radio broadcasting method, the former connect up complexity, constructional difficulties, and latter can produce the extra radio signal that continues, and produces to external world certain electromagnetic interference (EMI).
In addition, also have a kind of synchronous signal lamp to adopt " handing in hand " method of synchronization, although this method of synchronization can be saved centralized-control box, the quantity of the synchronous lamp that connects is not restriction also, but there is certain shortcoming in this mode, namely break down when a light fixture, be connected to synchronously all can the going wrong of all lamps of this lamp back, fault-tolerance is relatively poor.
Summary of the invention
The technical problem to be solved in the present invention is, for the defects of prior art, provides a kind of bionic synchronous signal lamp and control circuit thereof.
One of the technical solution adopted for the present invention to solve the technical problems is: construct a kind of bionic synchronous signal lamp control circuit, this bionic synchronous signal lamp control circuit is connected to the LED light source group, it comprises synchronizing signal control module and LED driver module, and described synchronizing signal control module comprises:
Synchronizing signal generation module: its generation and emission infrared synchronous signal;
The synchronizing signal receiver module: it receives described infrared synchronous signal;
Multi-resonant oscillating circuit: it produces pwm signal, and according to the infrared synchronous signal that described synchronizing signal receiver module receives, described pwm signal is regulated;
It is intermittently that described LED light source group is powered that described pwm signal is controlled described LED driver module, and when described LED light source group was luminous, described synchronizing signal generation module produced and launches described infrared synchronous signal.
Two of the technical solution adopted for the present invention to solve the technical problems is: construct a kind of bionic synchronous signal lamp, this a kind of bionic synchronous signal lamp comprises bionic synchronous signal lamp control circuit and coupled LED light source group, described bionic synchronous signal lamp control circuit comprises synchronizing signal control module and LED driver module, and described synchronizing signal control module comprises:
Synchronizing signal generation module: its generation and emission infrared synchronous signal;
The synchronizing signal receiver module: it receives described infrared synchronous signal;
Multi-resonant oscillating circuit: it produces pwm signal, and according to the infrared synchronous signal that described synchronizing signal receiver module receives, described pwm signal is regulated;
It is intermittently that described LED light source group is powered that described pwm signal is controlled described LED driver module, and when described LED light source group was luminous, described synchronizing signal generation module produced and launches described infrared synchronous signal.
The described bionic synchronous signal lamp control circuit of the invention described above, described LED light source group, the parallel connection of synchronizing signal generation module also are serially connected between the output plus terminal and output negative terminal of described LED driver module.
The described bionic synchronous signal lamp control circuit of the invention described above, described synchronizing signal receiver module comprise a plurality of infrared receiver triodes parallel with one another;
Described multi-resonant oscillating circuit comprises 555 timers, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first diode, the first electric capacity and the second electric capacity;
The power end of described 555 timers is connected with reset terminal and is connected to power supply; The voltage controling end of described 555 timers is connected to the first end of the first electric capacity, and the second end of the first electric capacity is connected to ground; The high level trigger end of described 555 timers is connected with the low level trigger end and is connected to the first end of the second electric capacity, and the second end of the second electric capacity is connected to ground; The discharge end of described 555 timers is connected to the first end of the first resistance, and the second end of the first resistance connects the first end of the second electric capacity, and the second end of the second electric capacity is connected to ground; The output terminal of described 555 timers is connected to the control end that enables of described LED driver module; And the second resistance is connected between the discharge end and power supply of described 555 timers;
The collector of described a plurality of infrared receiver triodes is connected and is connected to power supply, the emitter of described a plurality of infrared receiver triodes is connected and is connected to the positive pole of the first diode, the negative pole of the first diode is connected to the first end of the 3rd resistance, and the second end of the 3rd resistance is connected to the discharge end of described 555 timers; The first end of the 4th resistance is connected to the positive pole of the first diode, and the second end of the 4th resistance is connected to ground.
The described bionic synchronous signal lamp control circuit of the invention described above, described synchronizing signal generation module comprises a plurality of infrared light emitting diodes; Described a plurality of infrared light emitting diode is matrix form and connects, and wherein said a plurality of infrared light emitting diode series connection form at least two series connection bars, is connected in parallel between described each series connection bar.
The described bionic synchronous signal lamp control circuit of the invention described above, described LED light source group comprise a plurality of luminous LED lamps; Described a plurality of LED lamp is matrix form and connects, and wherein said a plurality of LED lamp series connection form at least two series connection bars, is connected in parallel between described each series connection bar.
Implement bionic synchronous signal lamp of the present invention, have following beneficial effect:
Do not need synchronous cable when 1, installing, do not need other auxiliary devices such as centralized-control box, reduced cost and the difficulty of installing, and the quantity of synchronous signal lamp is unrestricted;
2, when the minority synchronous signal lamp breaks down, other synchronous signal lamp can be not influenced, and fault-tolerance is better;
3, do not need the transceiving circuit, electromagnetic-radiation-free pollutes, and does not need Single-chip Controlling, and circuit structure is simple, and is with low cost;
4, flexible for installation, be particularly advantageous in the use of interim occasion.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the block diagram of bionic synchronous signal lamp of the present invention;
Fig. 2 is the block diagram of bionic synchronous signal lamp control circuit of the present invention;
Fig. 3 is the circuit diagram of bionic synchronous signal lamp one preferred embodiment of the present invention.
Embodiment
As shown in Figure 1, it is the block diagram of bionic synchronous signal lamp of the present invention, this bionic synchronous signal lamp comprises bionic synchronous signal lamp control circuit 1 and coupled LED light source group 2, bionic synchronous signal lamp control circuit 1 is 2 power supplies of LED light source group, and a plurality of LED lamps of controlling in LED light source group 2 are synchronous.
As shown in Figure 2, be the block diagram of bionic synchronous signal lamp control circuit of the present invention, this bionic synchronous signal lamp control circuit 1 comprises synchronizing signal control module 11 and LED driver module 12.
Wherein, synchronizing signal control module 11 comprises multi-resonant oscillating circuit 111, synchronizing signal receiver module 112 and synchronizing signal generation module 113.Synchronizing signal generation module 113 for generation of and launch the infrared synchronous signal; Synchronizing signal receiver module 112 is used for receiving the infrared synchronous signal; Multi-resonant oscillating circuit 111 produces a pwm signal, and according to the infrared synchronous signal that the synchronizing signal receiver module receives, pwm signal is regulated.It is intermittently that LED light source group 2 is powered that pwm signal is controlled LED driver module 12, and synchronizing signal generation module 113 produces and launches the infrared synchronous signal when LED light source group 2 is luminous.
LED light source group 2, synchronizing signal generation module 113 are in parallel, and be serially connected between the output plus terminal (+) and output negative terminal (-) of LED driver module 12, namely satisfied when LED light source group 2 is luminous synchronizing signal generation module 113 and produced and launch the infrared synchronous signal.
In the present invention, but LED driver module 12 is the constant-current drive circuit of driving LED light source group 2 power supplies, and its inside can be provided with overvoltage crowbar, current foldback circuit and thermal-shutdown circuit etc.
As shown in Figure 3, be the circuit diagram of bionic synchronous signal lamp one preferred embodiment of the present invention.In the present embodiment, bionic synchronous signal lamp is comprised of bionic synchronous signal lamp control circuit and LED light source group 2, the bionic synchronous signal lamp control circuit comprises synchronizing signal control module and LED driver module 12, and the synchronizing signal control module comprises multi-resonant oscillating circuit 111, synchronizing signal receiver module 112 and synchronizing signal generation module 113.
Synchronizing signal receiver module 112 comprises a plurality of infrared receiver triode Q1......Qn parallel with one another, be used for receiving the infrared synchronous signal that synchronizing signal generation module 113 sends, certainly, the concrete quantity of infrared receiver triode can be selected according to actual light fixture size and erecting bed combinatorial optimization.Multi-resonant oscillating circuit 111 mainly is made of 555 timer U1 and peripheral circuit thereof, as: multi-resonant oscillating circuit 111 comprises 555 timer U1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first diode D1, the first capacitor C 1 and the second capacitor C 2; The power end of 555 timer U1 (the 8th pin) is connected and is connected to power supply VCC with reset terminal (the 4th pin); The earth terminal of 555 timer U1 (the 1st pin) is connected to ground; The voltage controling end of 555 timer U1 (the 5th pin) is connected to the first end of the first capacitor C 1, and the second end of the first capacitor C 1 is connected to ground; The high level trigger end of 555 timer U1 (the 6th pin) is connected with low level trigger end (the 2nd pin) and is connected to the first end of the second capacitor C 2, and the second end of the second capacitor C 2 is connected to ground; The discharge end of 555 timer U1 (the 7th pin) is connected to the first end of the first resistance R 1, and the second end of the first resistance R 1 connects the first end of the second capacitor C 2, and the second end of the second capacitor C 2 is connected to ground; What the output terminal of 555 timer U1 (the 3rd pin) was connected to LED driver module 12 enables control end (EN); And the second resistance R 2 is connected between the discharge end (the 7th pin) and power supply of 555 timer U1.
The output terminal of 555 timer U1 (time parameter of the pwm signal of the 3rd pin output is:
T=tw1+tw2,
Tw1=0.7 (R1+R2) C2 wherein, tw2=0.7R2C2,
Tw1 is that the voltage at the second capacitor C 2 two ends rises to the required time of 2/3VCC by 1/3VCC, and tw2 was the second 2 required times of discharge of capacitor C.
Simultaneously, the dutycycle of this pwm signal: be q=tw1/ (tw1+tw2).
As seen, the first resistance R 1, the second resistance R 2 and the second capacitor C 2 have determined the oscillation frequency of multi-resonant oscillating circuit 111, the first resistance R 1 and the second resistance R 2 determined the dutycycle of the pwm signal that multi-resonant oscillating circuit 111 produces, the dutycycle that can regulate pwm signal by regulating the first resistance R 1 and the second resistance R 2.
The collector of a plurality of infrared receiver triode Q1......Qn is connected and is connected to power supply VCC, the emitter of a plurality of infrared receiver triode Q1......Qn is connected and is connected to the positive pole of the first diode D1, the negative pole of the first diode D1 is connected to the first end of the 3rd resistance R 3, and the second end of the 3rd resistance R 3 is connected to the discharge end of 555 timer U1 (the 7th pin); The first end of the 4th resistance R 4 is connected to the positive pole of the first diode D1, and the second end of the 4th resistance R 4 is connected to ground.
In the present embodiment, synchronizing signal generation module 113 comprises a plurality of infrared light emitting diode D31......D4n, these a plurality of infrared light emitting diode D31......D4n are matrix form and connect, i.e. these a plurality of infrared light emitting diode D31......D4n series connection form at least two series connection bars, are connected in parallel between each series connection bar.LED light source group 2 comprises a plurality of luminous LED lamp D11......D2n, and these a plurality of LED lamp D11......D2n lamps are matrix form and connect, i.e. these a plurality of LED lamp D11......D2n series connection form at least two series connection bars, and each series connection bar is connected in parallel.As seen, when infrared light emitting diode when certain series connection in bar or LED lamp break down, also can the working of the infrared light emitting diode in other series connection bar or LED lamp, fault-tolerance is better.
the specific works process is as follows: when power supply VCC has just begun to power, the second capacitor C 2 both end voltage are 0V, namely the voltage of the high level trigger end of 555 timer U1 (the 6th pin) and low level trigger end (the 2nd pin) is 0V, the inner triode cut-off that connects of the discharge end of 555 timer U1 (the 7th pin), the output terminal of 555 timer U1 (the 3rd pin) output high level, power supply VCC is by the first resistance R 1, second 2 pairs of resistance R the second capacitor C 2 chargings, the second capacitor C 2 both end voltage rise gradually, when the voltage (i.e. the voltage of the high level trigger end of 555 timer U1 (the 6th pin) and low level trigger end (the 2nd pin)) at the second capacitor C 2 two ends when rising to 2/3VCC, the output terminal of 555 timer U1 (the 3rd pin) output low level, the inner triode conducting that connects of the discharge end of 555 timer U1 (the 7th pin), the second capacitor C 2 is by discharge end (the 7th pin) discharge of the first resistance R 1 and 555 timer U1, the second capacitor C 2 both end voltage descend gradually, when voltage drop arrives 1/3VCC, the discharge end of 555 timer U1 (the 7th pin) and output terminal overturn again, the second capacitor C 2 is charged again, iterative cycles like this, the output terminal of 555 timer U1 (the 3rd pin) is just exported a stable pwm signal.This pwm signal is connected to the Enable Pin (EN) of LED driver module 12, be intermittently 2 power supplies of LED light source group so control LED driver module 12, synchronizing signal generation module 113 produces and launches the infrared synchronous signal when LED light source group 2 is luminous, and this infrared synchronous signals is infrared pulse.
when infrared ray receives any one in triode Q1......Qn and infrared pulse detected, this detects in the infrared receiver triode of infrared pulse will have electric current to flow through, the 4th resistance R 4 two ends just produce a pressure drop, if this moment, the second capacitor C 2 was between charge period, the voltage of the discharge end of 555 timer U1 (the 7th pin) is higher than the voltage on the emitter of infrared receiver triode Q1......Qn, the first diode D1 cut-off, infrared receiver triode Q1......Qn all ends, if this moment, the second capacitor C 2 was in interdischarge interval, pressure drop between the emitter of the discharge end of 555 timer U1 (the 7th pin) and infrared receiver triode Q1......Qn is successively by the first diode D1 and 3 pairs of the second capacitor C 2 chargings of the 3rd resistance R, make the discharge time of the second capacitor C 2 slightly slower than normal condition, this of short duration phase shift just causes the pwm signal of output terminal (the 3rd pin) output of 555 timer U1 to change, so cause LED driver module 12 intermittently to change for the time of LED light source group 2 power supplies, so through repeatedly feeding back, in LED light source group 2, the flicker of each LED lamp D11......D2n just can be tending towards synchronous.
In the present invention, the installation of synchronizing signal generation module 113 need be satisfied multidirectional, and correspondingly, the installation of synchronizing signal receiver module 112 also need be satisfied multidirectional.Certainly, the direction of emission infrared synchronous signal also can be set by the direction that synchronizing signal generation module 113 middle infrared (Mid-IR) emitting diode D31......D3n are set, correspondingly, can the direction that receive the infrared synchronous signal be set by the direction that synchronizing signal receiver module 112 middle infrared (Mid-IR)s reception triode Q1......Qn are set.
In the present invention, also can adopt the infrared receiver triode Q1......Qn in infrared receiving terminal alternative synchronization signal receiving module 112.
The present invention is by the synchronia of firefly in natural imitation circle, a kind of synchronization mechanism of novelty has been applied on signal lamp, the luminescence law of each signal lamp is to be controlled by the multi-resonant oscillating circuit that can again regulate and control in the bionic synchronous signal lamp control circuit, namely just completed the design that again regulates and controls oscillator in this mechanism by 555 timers, do not need the transceiving circuit, electromagnetic-radiation-free pollutes, and does not need Single-chip Controlling, circuit structure is simple, and is with low cost.
Bionic synchronous signal lamp of the present invention can be applicable to indicate in the occasion that region contour uses, and as highway trouble light, aviation obstruction beacon etc., makes that to indicate region contour more obvious.As, be provided with a plurality of bionical synchronism signal lamps of the present invention an area peripheral edge, when wherein certain bionical synchronism signal lamp broke down, other bionical synchronism signal lamp was unaffected, had also increased fault-tolerance on using.
Further, in the occasion of temporarily building use, need not other attached synchronizers such as synchronous cable due to this bionic synchronous signal lamp, this bionical synchronism signal lamp can also adopt battery independently-powered, can arbitrarily place in certain distance, use very convenient.
The above is only embodiments of the invention, not in order to limiting the present invention, all any modifications of doing in the spirit and principles in the present invention, is equal to and replaces or improvement etc., all should be included in protection scope of the present invention.
Claims (10)
1. a bionic synchronous signal lamp control circuit, be connected to the LED light source group, and it comprises synchronizing signal control module and LED driver module, it is characterized in that, described synchronizing signal control module comprises:
Synchronizing signal generation module: its generation and emission infrared synchronous signal;
The synchronizing signal receiver module: it receives described infrared synchronous signal;
Multi-resonant oscillating circuit: it produces pwm signal, and according to the infrared synchronous signal that described synchronizing signal receiver module receives, described pwm signal is regulated;
Described multi-resonant oscillating circuit comprises 555 timers, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first diode, the first electric capacity and the second electric capacity;
The power end of described 555 timers is connected with reset terminal and is connected to power supply; The voltage controling end of described 555 timers is connected to the first end of the first electric capacity, and the second end of the first electric capacity is connected to ground; The high level trigger end of described 555 timers is connected with the low level trigger end and is connected to the first end of the second electric capacity, and the second end of the second electric capacity is connected to ground; The discharge end of described 555 timers is connected to the first end of the first resistance, and the second end of the first resistance connects the first end of the second electric capacity, and the second end of the second electric capacity is connected to ground; The output terminal of described 555 timers is connected to the control end that enables of described LED driver module; And the second resistance is connected between the discharge end and power supply of described 555 timers;
It is intermittently that described LED light source group is powered that described pwm signal is controlled described LED driver module, and when described LED light source group was luminous, described synchronizing signal generation module produced and launches described infrared synchronous signal.
2. bionic synchronous signal lamp control circuit according to claim 1, is characterized in that, described LED light source group is in parallel with the synchronizing signal generation module, and be connected between the output plus terminal and output negative terminal of described LED driver module.
3. bionic synchronous signal lamp control circuit according to claim 1, is characterized in that,
Described synchronizing signal receiver module comprises a plurality of infrared receiver triodes parallel with one another;
The collector of described a plurality of infrared receiver triodes is connected and is connected to power supply, the emitter of described a plurality of infrared receiver triodes is connected and is connected to the positive pole of the first diode, the negative pole of the first diode is connected to the first end of the 3rd resistance, and the second end of the 3rd resistance is connected to the discharge end of described 555 timers; The first end of the 4th resistance is connected to the positive pole of the first diode, and the second end of the 4th resistance is connected to ground.
4. bionic synchronous signal lamp control circuit according to claim 1 and 2, is characterized in that,
Described synchronizing signal generation module comprises a plurality of infrared light emitting diodes; Described a plurality of infrared light emitting diode is matrix form and connects, and wherein said a plurality of infrared light emitting diode series connection form at least two series connection bars, is connected in parallel between described each series connection bar.
5. bionic synchronous signal lamp control circuit according to claim 1 and 2, is characterized in that, described LED light source group comprises a plurality of luminous LED lamps; Described a plurality of LED lamp is matrix form and connects, and wherein said a plurality of LED lamp series connection form at least two series connection bars, is connected in parallel between described each series connection bar.
6. bionic synchronous signal lamp, comprise bionic synchronous signal lamp control circuit and coupled LED light source group, described bionic synchronous signal lamp control circuit comprises synchronizing signal control module and LED driver module, it is characterized in that, described synchronizing signal control module comprises:
Synchronizing signal generation module: its generation and emission infrared synchronous signal;
The synchronizing signal receiver module: it receives described infrared synchronous signal;
Multi-resonant oscillating circuit: it produces pwm signal, and according to the infrared synchronous signal that described synchronizing signal receiver module receives, described pwm signal is regulated;
Described multi-resonant oscillating circuit comprises 555 timers, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first diode, the first electric capacity and the second electric capacity;
The power end of described 555 timers is connected with reset terminal and is connected to power supply; The voltage controling end of described 555 timers is connected to the first end of the first electric capacity, and the second end of the first electric capacity is connected to ground; The high level trigger end of described 555 timers is connected with the low level trigger end and is connected to the first end of the second electric capacity, and the second end of the second electric capacity is connected to ground; The discharge end of described 555 timers is connected to the first end of the first resistance, and the second end of the first resistance connects the first end of the second electric capacity, and the second end of the second electric capacity is connected to ground; The output terminal of described 555 timers is connected to the control end that enables of described LED driver module; And the second resistance is connected between the discharge end and power supply of described 555 timers;
It is intermittently that described LED light source group is powered that described pwm signal is controlled described LED driver module, and when described LED light source group was luminous, described synchronizing signal generation module produced and launches described infrared synchronous signal.
7. bionic synchronous signal lamp according to claim 6, is characterized in that, described LED light source group is in parallel with the synchronizing signal generation module, and be connected between the output plus terminal and output negative terminal of described LED driver module.
8. bionic synchronous signal lamp according to claim 6, is characterized in that,
Described synchronizing signal receiver module comprises a plurality of infrared receiver triodes parallel with one another;
The collector of described a plurality of infrared receiver triodes is connected and is connected to power supply, the emitter of described a plurality of infrared receiver triodes is connected and is connected to the positive pole of the first diode, the negative pole of the first diode is connected to the first end of the 3rd resistance, and the second end of the 3rd resistance is connected to the discharge end of described 555 timers; The first end of the 4th resistance is connected to the positive pole of the first diode, and the second end of the 4th resistance is connected to ground.
9. according to claim 6 or 7 described bionic synchronous signal lamps, is characterized in that, described synchronizing signal generation module comprises a plurality of infrared light emitting diodes; Described a plurality of infrared light emitting diode is matrix form and connects, and wherein said a plurality of infrared light emitting diode series connection form at least two series connection bars, is connected in parallel between described each series connection bar.
10. according to claim 6 or 7 described bionic synchronous signal lamps, is characterized in that, described LED light source group comprises a plurality of luminous LED lamps; Described a plurality of LED lamp is matrix form and connects, and wherein said a plurality of LED lamp series connection form at least two series connection bars, is connected in parallel between described each series connection bar.
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CN102821508A (en) * | 2011-06-09 | 2012-12-12 | 海洋王照明科技股份有限公司 | LED synchronous signal lamp and control system thereof |
CN102523653A (en) * | 2011-12-20 | 2012-06-27 | 江苏飞格光电有限公司 | Controllable LED current source circuit |
CN105050265B (en) * | 2015-07-17 | 2017-10-17 | 云南日昌隆光电科技股份有限公司 | The multigroup constant-current drive circuits of LED |
CN105142265A (en) * | 2015-07-28 | 2015-12-09 | 江苏达伦电子股份有限公司 | LED timing control system |
CN107631238B (en) * | 2017-09-22 | 2019-06-25 | 武汉科技大学 | A kind of imitative firefly-inspired synchrony luminous body cluster robot and its synchronous light-emitting method |
CN110719667B (en) * | 2019-11-04 | 2021-06-22 | 浙江生辉照明有限公司 | LED lamp synchronous control device and method |
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