CN102883496A - Safety monitoring and lighting device for two-order type light emitting diode - Google Patents
Safety monitoring and lighting device for two-order type light emitting diode Download PDFInfo
- Publication number
- CN102883496A CN102883496A CN2011102017855A CN201110201785A CN102883496A CN 102883496 A CN102883496 A CN 102883496A CN 2011102017855 A CN2011102017855 A CN 2011102017855A CN 201110201785 A CN201110201785 A CN 201110201785A CN 102883496 A CN102883496 A CN 102883496A
- Authority
- CN
- China
- Prior art keywords
- emitting diode
- control unit
- light
- luminescence unit
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a safety monitoring and lighting device for a two-order type light emitting diode. At night, a light emitting diode light source is automatically turned on and displays low-brightness lighting; and when an action detector detects invasion action, the light emitting diode light source is immediately switched from low-order lighting to high-order lighting and is recovered to low-order lighting to save energy after short delay time. The safety monitoring and lighting device comprises a power management unit, a photosensitive switch control unit, an action detecting unit, a load and power control unit and a luminous unit, wherein the luminous unit consists of one or more light emitting diodes and can be determined to be switched on or switched off according to the photosensitive switch control unit; and when the action detection unit detects that someone invades, the brightness can be greatly improved immediately by adjusting current or the number of conducted loads, so that a function of warning an invader can be realized.
Description
Technical field
The present invention relates to a kind of lighting device, and be particularly related to a kind of two stepwise light-emitting diode security monitoring lighting devices with low-order and high-order brightness.
Background technology
Incandescent lamp, fluorescent lamp, Halogen lamp LED, and the various light source such as light-emitting diode is existing lighting device.Outdoor illumination device uses photo resistance automatically to start the light source of light fixture usually, be called light-operated mode of operation (Photo-Control Mode, be called for short the PC pattern), under optical mode control, utilization timer control light source extinguishes the illumination of light fixture after complete bright one period set time or is switching to than low-light level, be called energy conservation pattern (Power-Saving Mode, be called for short the PS pattern), the normal movement detection device that uses under energy saver mode, when detecting personnel near light fixture, restart light fixture, do blink of complete bright illumination, reply afterwards energy saver mode.No matter be automatically to start illumination by the detection background brightness, regularly complete bright and throw light on entirely brightly from full brightness dark or lower-wattage by testing staff's action, or adjust the control of brightness, often use complicated circuit engineering to realize.In the driving of light-emitting diode, still belong to the technology of complicated and high cost of manufacture especially.
The control of various light-source brightness especially in the illumination control of light-emitting diode, for the contrast that how to strengthen brightness of illumination and colour temperature, proposes the simple and easy effective practice, is problem of the present invention.
Summary of the invention
The object of the invention is to propose a kind of light-emitting diode security monitoring lighting device of two stepwise brightness, it can utilize the mode of adjusting electric current or light source load, when under energy saver mode, detecting personnel's action, switch to immediately high-order brightness and continue for some time to reach the effect of caution.When not detected the people, maintain under the state of low order illumination to save the energy.
The invention provides a kind of two stepwise light-emitting diode security monitoring lighting devices, comprise a Power Management Unit, a photosensitive switch control unit, action detecting unit, a load and power control unit and a luminescence unit, this luminescence unit comprises the light-emitting diode of one or more series connection; When this photosensitive switch control unit detected ambient brightness and is lower than a preset value, this load and power control unit were opened this luminescence unit, make this luminescence unit produce a high-order or a low order brightness; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed this luminescence unit; Under energy saver mode, when this action detecting unit detected personnel's action, this load and power control unit improved the electric current of this luminescence unit of flowing through, and made this luminescence unit produce a high-order brightness and lasting one section Preset Time.
The present invention also provides a kind of two stepwise light-emitting diode security monitoring lighting devices, comprise a Power Management Unit, a photosensitive switch control unit, action detecting unit, a load and power control unit and a luminescence unit, this luminescence unit comprises the light-emitting diode of a plurality of series connection, when this photosensitive switch control unit detects ambient brightness and is lower than a preset value, this load and power control unit are opened all or part of light-emitting diode in this luminescence unit, make this luminescence unit produce a high-order or a low order brightness; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed all light-emitting diodes in this luminescence unit; Under energy saver mode, when this action detecting unit detected personnel's action, this load and power control unit were opened the light-emitting diode of the whole numbers in this luminescence unit, made this luminescence unit produce a high-order brightness and lasting one section Preset Time; At this embodiment in conjunction with fixed current controling circuit, with the light-emitting diode in fixing this luminescence unit of direct current driven.
The present invention provides again a kind of two stepwise light-emitting diode security monitoring lighting devices, comprise a Power Management Unit, a photosensitive switch control unit, action detecting unit, a load and power control unit and a luminescence unit, this luminescence unit comprises a phase angle controller and one or more AC-operated light sources in parallel, and this phase angle controller is coupled between the AC-operated light sources and AC power of above-mentioned one or more parallel connections; Wherein, this load and power control unit are adjusted the average electrical power of this luminescence unit via this phase angle controller; When this photosensitive switch control unit detected ambient brightness and is lower than a preset value, this load and power control unit were opened this luminescence unit, make this luminescence unit produce the brightness of a high-order or a low order; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed this luminescence unit; Under energy saver mode, when this action detecting unit detected personnel's action, this load and power control unit improved the average electrical power of this luminescence unit, made this luminescence unit produce a high-order brightness and lasting one section Preset Time.
The present invention also proposes a kind of two stepwise light-emitting diode security monitoring lighting devices, comprise a Power Management Unit, one photosensitive switch control unit, one action detecting unit, one load and power control unit and a luminescence unit, this luminescence unit is by the alternating-current light emitting diode of X high wattage and parallel with one another composition of alternating-current light emitting diode of Y low wattage, when this photosensitive switch control unit detects ambient brightness and is lower than a preset value, this load and power control unit are opened the alternating-current light emitting diode of those low wattages, make this luminescence unit produce a low order brightness; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed this luminescence unit; When this action detecting unit detects an intruder operation, this load and power control unit are opened the light-emitting diode of those high wattages and the light-emitting diode of those low wattages simultaneously, make this luminescence unit produce a high-order brightness and lasting one section Preset Time, wherein X, Y are positive integer.
The present invention proposes again a kind of two stepwise light-emitting diode security monitoring lighting devices, comprise a Power Management Unit, a photosensitive switch control unit, action detecting unit, a load and power control unit and a luminescence unit, this luminescence unit comprises a rectification circuit and one or more AC-operated light sources in parallel, and this rectification circuit is coupled between above-mentioned AC-operated light sources and the AC power; Wherein, this load and power control unit are adjusted the average electrical power of this luminescence unit via this rectification circuit; When this photosensitive switch control unit detected ambient brightness and is lower than a preset value, this load and power control unit were opened this luminescence unit, make this luminescence unit produce a low order brightness; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed this luminescence unit; When this action detecting unit detects an intruder operation, this load and power control unit improve the average electrical power of this luminescence unit, make this luminescence unit produce a high-order brightness and lasting one section Preset Time, wherein this rectification circuit comprises a switch and a diode in parallel, and this switch is controlled by this load and power control unit.
In sum, the light-emitting diode security monitoring lighting device of the two stages brightness that the embodiment of the invention provides can be carried out light-operated and the energy conservation pattern.Under optical mode control, automatically open at dark illumination, and at cockcrow autoshutdown illumination.Optical mode control produces first one section setting-up time of high-order brightness illumination, automatically is switching to the energy saver mode that produces low order brightness illumination via control unit afterwards.Under energy saver mode, when the movement detection device detected the people, lighting device can switch to immediately high-order brightness and keep one section of short duration Preset Time, to reach the effectiveness of illumination or caution.Behind Preset Time, lighting device can automatically switch the illumination of getting back to low order brightness to save the energy.
For enabling further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, but these explanations with appended graphic only be that the present invention is described, but not interest field of the present invention is done any restriction.
Description of drawings
Fig. 1 is the circuit structure diagram of two stepwise light-emitting diode security monitoring lighting devices of first embodiment of the invention.
Fig. 2 A is the circuit diagram of two stepwise light-emitting diode security monitoring lighting devices of first embodiment of the invention.
Fig. 2 B is the oscillogram of the pulse wave width modulation signal PWM of first embodiment of the invention.
Fig. 3 A is the circuit diagram of two stepwise light-emitting diode security monitoring lighting devices of second embodiment of the invention.
Fig. 3 B is the circuit diagram of two stepwise light-emitting diode security monitoring lighting devices of second embodiment of the invention.
Fig. 4 A is the circuit diagram of two stepwise light-emitting diode security monitoring lighting devices of third embodiment of the invention.
Fig. 4 B is the waveform schematic diagram of two stepwise light-emitting diode security monitoring lighting devices of third embodiment of the invention.
Fig. 5 is the circuit diagram of two stepwise light-emitting diode security monitoring lighting devices of third embodiment of the invention.
Fig. 6 is the circuit diagram of two stepwise light-emitting diode security monitoring lighting devices of fourth embodiment of the invention.
Fig. 7 is the circuit diagram of two stepwise light-emitting diode security monitoring lighting devices of fifth embodiment of the invention.
Wherein, description of reference numerals is as follows:
100: two stepwise light-emitting diode security monitoring lighting devices;
110: Power Management Unit;
120: the photosensitive switch control unit;
130: the movement detection unit;
140: load and power control unit;
150,250,350,450,550,650,750: luminescence unit;
220: optical sensor;
230: the movement detection device;
240: microcontroller;
260: time setting unit;
L1～L3: light-emitting diode;
ACLED, ACLED1～3: alternating-current light emitting diode;
451,551: the phase angle controller;
452,552,553: controllable silicon;
651,652,751～753: switch;
Q1, Q2, Q4, Q5: transistor
R, R1, R2, R16, R17: resistance;
GND: earth terminal;
J1, J2: relay.
Embodiment
(the first embodiment)
With reference to Fig. 1, it is depicted as the circuit structure diagram of two stepwise light-emitting diode security monitoring lighting devices of first embodiment of the invention.Two stepwise light-emitting diode security monitoring lighting devices (abbreviation lighting device) 100 comprise Power Management Unit 110, photosensitive switch control unit 120, movement detection unit 130, load and power control unit 140 and luminescence unit 150.Power Management Unit 110 is used for providing System Operation required power supply, and its structure comprises for example existing AC/DC voltage conversion circuit (AC/DC voltage converter).Photosensitive switch control unit 120 for example is photo resistance, and it is coupled to load and power control unit 140, for detection of ambient brightness to judge daytime and night.Movement detection unit 130 for example is passive infrared thread detector (Passive Infrared Sensor, PIR), and it is coupled to load and power control unit 140, for detection of whether someone enters.When having the people to enter in the detection range of movement detection unit 130, movement detection unit 130 can send detection signal, sends load and power control unit 140 to.
Load and power control unit 140 can use microcontroller implementation, and it is coupled to luminescence unit 150, can be according to the detection signal of photosensitive switch control unit 120 with movement detection unit 130, and the brightness of control luminescence unit 150.Luminescence unit 150 can comprise a plurality of light-emitting diodes and switch element.Load and power control unit 140 can be controlled luminescence unit 150, change to produce two or more at least brightness.
In the present embodiment, when photosensitive switch control unit 120 detects ambient brightness and is lower than preset value (darkness), load and power control unit 140 are carried out optical mode control, open luminescence unit 150, make luminescence unit 150 produce high-order brightness, through a Preset Time, be switching to the energy saver mode of low order brightness again.When photosensitive switch control unit 120 detects ambient brightness and is higher than preset value (dawn), load and power control unit 140 can be closed luminescence unit 150.Under energy saver mode, when movement detection unit 130 detected personnel's action, load and power control unit 140 can improve the electric current of the luminescence unit 150 of flowing through, and made luminescence unit 150 produce high-order brightness and lasting one section of short duration Preset Time.After of short duration Preset Time, can automatically reduce the electric current of the luminescence unit 150 of flowing through, make luminescence unit 150 produce low order brightness to save the energy.
Please refer to Fig. 2 A, it is depicted as the circuit diagram of the lighting device 100 of first embodiment of the invention.Photosensitive switch control unit 120 is realized with optical sensor 220; Movement detection unit 130 is realized with movement detection device 230; Load and power control unit 140 are realized by microcontroller 240.Luminescence unit 250 comprises three light-emitting diode L1～L3 of series connection.Light-emitting diode L1～L3 is connected between a DC power supply and the transistor Q1, and its DC power supply can be provided by Power Management Unit 110.Transistor Q1 is N passage metal-oxide half field effect transistor (NMOS).Transistor Q1 is connected between three the light-emitting diode L1～L3 and ground connection GND of series connection.Load and power control unit 140 are with microcontroller 240 realizations, and it can export pulse wave width modulation signal (PWM) to the grid of transistor Q1, with the average current of 250 conductings of control luminescence unit.Element that it should be noted that above-mentioned Fig. 2 A only is one embodiment of the invention, and the present invention is not restricted to the element of Fig. 2 A.
Please be simultaneously with reference to Fig. 2 B, it is depicted as the oscillogram of the pulse wave width modulation signal PWM of first embodiment of the invention.Under optical mode control, pwm signal makes the time T of transistor Q1 conducting
OnThan T deadline
OffLong.Under energy saver mode, pwm signal makes the time T of transistor Q1 conducting
OnThan T deadline
OffShort.The brightness of illumination that compares two kinds of mode of operations is under optical mode control, because the time T of Q1 conducting
OnLong, so that it is higher to drive the average current of luminescence unit 250, so brightness is higher, belong to high-order brightness; Under energy saver mode, because the time T of Q1 conducting
OnShort, so that it is lower to drive the average current of luminescence unit 250, so brightness is lower, belong to low order brightness.
In addition, microcontroller 240 is coupled to a time setup unit 260, and this time setup unit 260 is available for users to set the duration of its high-order brightness under the optical mode control or the time of complete bright pattern, and the present embodiment is not limited.
(the second embodiment)
Refer again to Fig. 1, the brightness of its luminescence unit 150 changes also can produce two or more at least brightness by the number of adjusting the light source load of opening.In the present embodiment, lighting device 100 can produce low order brightness and high-order brightness by lighting part light-emitting diode or whole light-emitting diodes.
Please be simultaneously with reference to Fig. 3 A, it is depicted as the circuit diagram of the lighting device 100 of second embodiment of the invention.Fig. 3 A and the main difference of Fig. 2 A are luminescence unit 350, comprising three light-emitting diode L1～L3 and nmos pass transistor Q1, Q2.Light-emitting diode L1～L3 connects with transistor Q1, and is connected between DC power supply and the fixed current controling circuit 310.In addition, transistor Q2 becomes to be connected in parallel with the two ends of light-emitting diode L2 and L3.The grid of transistor Q1 and Q2 is connected respectively to the pin that microcontroller 240 indicates PC and PS.In the present embodiment, the electric current that fixed current controling circuit 310 restrictions drive light-emitting diode L1～L3 is for to decide electric current, and namely L1～L3 is luminous with constant current mode (Constant-Current Mode).
With reference to Fig. 3 A, the control transistor Q1 conducting of the PC pin of microcontroller 240 or cut-off; When the PC pin is high potential or electronegative potential, respectively so that Q1 conducting or cut-off are used for opening or closing all light-emitting diode L1～L3.The control transistor Q2 conducting of PS pin or the cut-off of microcontroller 240 can form two current circuits 351,352 at luminescence unit 350.When the PS of microcontroller 240 pin is high potential, the Q2 conducting, current circuit 351 is by light-emitting diode L1 and transistor Q2; When the PS pin is electronegative potential, the Q2 cut-off, current circuit 352 is by whole light-emitting diode L1～L3.So, microcontroller 240 can be controlled the light-emitting diode number that will open by transistor Q2, to produce the brightness of high or low rank.
When optical sensor 220 detected ambient brightness and is higher than preset value, microcontroller 240 was sent a low-potential voltage from the PC pin, transistor Q1 cut-off and close whole light-emitting diode L1～L3 in the luminescence unit 350.When optical sensor 220 detects ambient brightness and is lower than preset value, microcontroller 240 starts optical mode control, also namely send a high-potential voltage and the PS pin is electronegative potential from the PC pin, so that transistor Q1 conducting and transistor Q2 cut-off, form the current circuit 352 that Fig. 3 A indicates, three light-emitting diode L1～L3 that open in the luminescence unit 350 produce high-order brightness.High-order brightness continued after one default period, microcontroller 240 enters energy saver mode, also be that the PC pin is kept high potential, but the PS pin is sent a high-potential voltage and is made transistor Q2 conducting, form the current circuit 351 that Fig. 3 A indicates, therefore only have single light-emitting diode L1 luminous, produce low order brightness.
Under energy saver mode, when movement detection device 230 detects personnel's action, the PS pin of microcontroller 240 is of short duration to switch to low-potential voltage from high potential, make the of short duration cut-off of transistor Q2, form current circuit 352, open all the light-emitting diode L1～L3 in the luminescence unit 350, make luminescence unit 350 of short duration generation high-order brightness.Wherein, luminescence unit 350 is to drive to decide electric current (definite value), so its brightness meeting is directly in direct ratio with the light-emitting diode number of lighting.Fig. 3 B is another type execution mode of Fig. 3 A, substitutes the switching function of nmos pass transistor Q1 and Q2 with relay J 1 and J2.Microcontroller 240 comes control relay J2 and J1 via control NPN transistor (NPN bipolar junction transistor) Q4, Q5.Resistance R 16, R17 are current-limiting resistance.
Under optical mode control, relay J 1 adhesive, and relay J 2 flicks, and decides all light-emitting diode L1 of current drives～L3 and produces high-order brightness; Under energy saver mode, relay J 1 and J2 adhesive, decide electric current and only drive the brightness of light-emitting diode L1 generation low order, and when movement detection device 230 detects personnel's action, the PS pin of microcontroller 240 is of short duration to switch to low-potential voltage from high potential, flick again adhesive so that relay J 2 is of short duration, produce of short duration high-order brightness.
In order to strengthen the contrast of high/low rank brightness, light-emitting diode L1 can adopt the 2700K color temperature light emitting diode, and light-emitting diode L2, L3 can adopt the 5000K color temperature light emitting diode.Luminescence unit 350 included light-emitting diode numbers can surpass three, for example 5 or 6.Transistor Q2 can be parallel to the two ends of a plurality of light-emitting diodes relatively, to adjust the difference of high/low rank brightness.In addition, luminescence unit 350 also can comprise a plurality of transistor Q2, is respectively coupled to the two ends of each light-emitting diode so that more more options mode to be provided.Microcontroller 240 can be according to design requirement, in the situation that different, determine the light-emitting diode number that will light.After the explanation via above-described embodiment, the art has knows that usually the knowledgeable should know its execution mode by inference, does not add at this and gives unnecessary details.
(the 3rd embodiment)
Refer again to Fig. 1, its luminescence unit 150 also can comprise phase angle controller and one or more alternating-current light emitting diodes in parallel, and the phase angle controller is coupled between the alternating-current light emitting diode and AC power of above-mentioned one or more parallel connections.In the present embodiment, load and power control unit 140 can be adjusted via the phase angle controller average electrical power of luminescence unit 150, to produce the variation of low order brightness and high-order brightness.
Please refer to Fig. 4 A, it is depicted as the circuit diagram of the lighting device 100 of third embodiment of the invention.The main difference of Fig. 4 A and Fig. 3 is that the light source load of luminescence unit 450 is alternating-current light emitting diode ACLED, be couple to AC power, and luminescence unit 450 also comprises phase angle controller 451.Phase angle controller 451 comprises controllable silicon 452, zero-crossing detection circuit 453 and resistance R.When optical sensor 220 detected ambient brightness and is higher than preset value, microcontroller 240 cut out luminescence unit 450.When optical sensor 220 detected ambient brightness and is lower than preset value, microcontroller 240 started optical mode controls, opens luminescence unit 450.Under optical mode control, microcontroller 240 is selected a control pin, send pulse signal to trigger controllable silicon 452 via resistance R, produce a large conducting phase angle, make luminescence unit 450 produce high-order brightness, continue after one default period, sent the pulse signal of energy saver mode by same control pin to trigger controllable silicon 452, produce a little conducting phase angle, make luminescence unit 450 be switching to the energy saver mode of low order brightness from high-order brightness.Under energy saver mode, when movement detection unit 230 detects personnel's action, microcontroller 240 is made luminescence unit 450 produce high-order brightness, and is replied low order brightness after continuing one period blink by same the of short duration pulse signal of sending optical mode control of control pin.
Illumination control at alternating-current light emitting diode ACLED, microcontroller 240 is in conjunction with zero-crossing detection circuit 453, by detected zero crossing time (when for example AC wave shape is by no-voltage), send the pulse signal synchronous with AC power, the controllable silicon 452 that triggers in the phase angle controller 451 makes it conducting, changes thus the average electrical power that is input to luminescence unit 450.Because alternating-current light emitting diode ACLED has the cut-in voltage V of a beginning conducting
tIf the time point that pulse signal triggering controllable silicon 452 makes it conducting is inaccurate, when trigger impulse occurred, the instant value of alternating voltage was less than the cut-in voltage V of alternating-current light emitting diode ACLED
t, may cause alternating-current light emitting diode ACLED flicker or non-luminous phenomenon.So the pulse signal that microcontroller 240 produces must fall behind suitable lead time of zero crossing of AC supply voltage string ripple.
The voltage amplitude of supposing AC power is V
m, frequency is f, then for having cut-in voltage V
tLight source load, the zero crossing lead time t of microcontroller 240 output trigger impulses
DMust be limited in scope a: t
o＜t
D＜1/ (2f)-t
oT wherein
o=(1/2 π f) sin
-1(V
t/ V
m).This criterion is applicable to various alternating-current light emitting diode, all can stablize triggering to determine controllable silicon 452 in the positive-negative half-cycle of AC power.V with alternating-current light emitting diode
t(rms)=80V is example, and hypothesis V
m(rms)=and 110V and f=60Hz, obtain t
o=2.2ms and 1/ (2f)=8.3ms.Therefore, the pulse of the modulation phase angle of microcontroller 240 outputs, it falls behind the lead time t of the zero crossing of alternating voltage string ripple
DMust design at 2.2ms＜t
DThe scope of＜6.1ms.
Please refer to Fig. 4 B, Fig. 4 B is the waveform schematic diagram of two stepwise light-emitting diode security monitoring lighting devices of third embodiment of the invention.Waveform among Fig. 4 B (a)～(d) represent respectively the zero crossing delay pulse of AC power, zero cross detection circuit 453, microcontroller 240 output connecting pin, and 450 two end points of luminescence unit between voltage waveform.Zero-crossing detection circuit 453 is the alternating voltage string ripple of AC power, such as the little figure (a) among Fig. 4 B, is transformed into the symmetrical square wave that comprises a low and high magnitude of voltage, such as the little figure (b) among Fig. 4 B.At the zero crossing of alternating voltage string ripple, symmetrical square wave is upgraded to high-voltage value from low voltage value, or drops to low voltage value from high-voltage value.Also namely, the zero crossing of the edge of symmetrical square wave corresponding alternating voltage string ripple on sequential.The waveform generation that microcontroller 240 is exported according to zero-crossing detection circuit 453 is with respect to the zero crossing delay pulse of the zero crossing of alternating voltage string ripple, such as the little figure (c) among Fig. 4 B.Zero crossing delay pulse edge with respect to symmetrical square wave on sequential falls behind a lead time t
Dt
DMust an effective range, trigger and so that alternating-current light emitting diode ACLED conducting to determine that controllable silicon 452 can be stablized.Little figure (d) among Fig. 4 B is the voltage waveform that is added between the alternating-current light emitting diode ACLED two ends, the conducting period t of the brightness of luminescence unit 450 and alternating-current light emitting diode ACLED
OnRelevant, also be t
OnLength be directly proportional with the average electrical power that is input to alternating-current light emitting diode ACLED.The difference that compares optical mode control and energy saver mode, alternating-current light emitting diode ACLED has long conducting period t under optical mode control
On, send high-order brightness; When energy saver mode, the conducting period t of alternating-current light emitting diode ACLED
OnShorter, then send low order brightness.
Please refer to Fig. 5, it is depicted as the circuit diagram of the lighting device 100 of third embodiment of the invention.The luminescence unit 550 of lighting device 100 comprises alternating-current light emitting diode ACLED1 and ACLED2 and phase angle controller 551.The phase angle controller comprises controllable silicon 552 and 553, zero-crossing detection circuit 554 and resistance R 1 and R2.The difference of the luminescence unit 550 of Fig. 5 and the luminescence unit 450 of Fig. 4 A is that luminescence unit 550 has not only an alternating-current light emitting diode and not only controllable silicon, and alternating-current light emitting diode ACLED1 can select not identical with the light emission color temperature of alternating-current light emitting diode ACLED2.
At the embodiment of Fig. 5, alternating-current light emitting diode ACLED1 is that high color temperature is luminous, and alternating-current light emitting diode ACLED2 is luminous for low colour temperature.Under optical mode control, microcontroller 240 is via phase angle controller 551 control conducting phase angles and light simultaneously alternating-current light emitting diode ACLED1 and ACLED2, makes luminescence unit 450 produce high-order brightness and mixes colour temperature and throw light on.Under energy saver mode, microcontroller 240 is via phase angle controller 551 control conducting phase angles and only light alternating-current light emitting diode ACLED2, makes luminescence unit 450 produce low order brightness and low colour temperature illumination.And under energy saver mode, when movement detection device 230 detects personnel's action, microcontroller 240 is via the phase angle controller 551 maximum conducting phase angles of control and light alternating-current light emitting diode ACLED1 and ACLED2, make luminescence unit 450 produce high-order brightness and high color temperature illumination, generation has high brightness and the contrast of high tone of alarm function, and continues one of short duration default period.Lighting device accordingly can produce the illumination of high or low rank brightness, and the illumination of high-order brightness and low order brightness has not same hue.The operating principle of luminescence unit 550 other parts is identical with luminescence unit 450, repeats no more.
(the 4th embodiment)
Please refer to Fig. 6, it is depicted as the circuit diagram of the lighting device 100 of fourth embodiment of the invention.Luminescence unit 650 is implemented the luminescence unit 150 of Fig. 1, comprises the alternating-current light emitting diode ACLED1 of three identical luminous powers～3 and switch 651 and 652. Switch 651 and 652 can be relay.Alternating-current light emitting diode ACLED1 and ACLED2 are in parallel and connect with switch 652, consist of two times power light sources, and this is in parallel with alternating-current light emitting diode ACLED3 again, consists of three times power light sources, is couple to AC power via switch 651.In addition, Fig. 6 realizes load and the power control unit 140 of Fig. 1 with microcontroller 240.The PC of microcontroller 240 and the pin of PS are couple to respectively switch 651 and 652, output voltage signal respectively control switch 651 and 652 to produce short circuit or to open circuit.
Under optical mode control, the PC of microcontroller 240 and PS pin control switch 651 and 652 produce short circuit simultaneously, and alternating-current light emitting diode ACLED1～3 thereby be connected to AC power are so that the high-order brightness that luminescence unit 650 produces three times powers.High-order brightness continues after one section setting-up time, microcontroller 240 incision energy saver modes keep switch 651 in short-circuit condition, but PS pin control switch 652 open circuit, only have alternating-current light emitting diode ACLED3 to be connected to AC power, so that the low order brightness that luminescence unit 650 produces a times power.Under energy saver mode, when movement detection device 230 detected personnel's action, microcontroller 240 of short duration starting switches 652 produced short circuit, send the high-order brightness of three times powers and continue one section Preset Time, return the state that switch 652 opens circuit, send the low order brightness of a times power.Therefore the lighting device of Fig. 6 can with easy means, produce the two stages illumination of at least 3: 1 brightness contrast via control switch 651 and 652.
The alternating-current light emitting diode ACLED1 of Fig. 6 and ACLED2 can be high luminous power and 5000K color temperature light sources, and alternating-current light emitting diode ACLED3 is low luminous power and 2700K color temperature light sources, then must not use zero-crossing detection circuit, produce the illumination of two stages from alternating-current light emitting diode, it has stronger brightness and colour temperature contrast.
(the 5th embodiment)
With reference to Fig. 7, it is depicted as the circuit diagram of the lighting device 100 of fifth embodiment of the invention.The luminescence unit 750 of Fig. 7 is to connect with a rectifier diode D at alternating-current light emitting diode ACLED3 with the difference of the luminescence unit 650 of Fig. 6.Rectifier diode D is in parallel with switch 753, and is connected between alternating-current light emitting diode ACLED3 and the switch 751.When switch 753 conducting, the AC power by alternating-current light emitting diode ACLED3 is Full wave shape.When switch 753 opened circuit, the AC power by alternating-current light emitting diode ACLED3 was positive half wave shape because of the rectification of rectifier diode D, and the luminous power of its alternating-current light emitting diode ACLED3 is left half.
Switch 753 and switch 752 are controlled by the PS pin of microcontroller 240 equally, produce synchronously short circuit or open circuit.If the luminous power of three alternating-current light emitting diode ACLED1～3 is identical, under optical mode control, the PC of microcontroller 240 and PS pin control switch 751 and switch 752～753 produce short circuit simultaneously, alternating-current light emitting diode ACLED1～3 are simultaneously luminous, so that luminescence unit 750 produces the high-order brightness that is three times in single LED power.Under energy saver mode, microcontroller 240 is kept switch 751 short circuits, but control switch 752 and 753 opens circuit.At this moment, only have alternating-current light emitting diode ACLED3 meeting luminous.Because AC power through rectifier diode D rectification after, the waveform of remaining positive half wave only is so the luminous power of alternating-current light emitting diode ACLED3 is only without under the rectification state half.Under high-order brightness, alternating-current light emitting diode ACLED1～3 can be entirely bright, and under low order brightness, only has alternating-current light emitting diode ACLED3 can produce half brightness of power.Than higher-order brightness and low order brightness, the ratio of its luminous power is 6 to 1, therefore can produce very strong brightness contrast, to reach caution invader's effect.
It should be noted that luminescence unit is not limited to alternating-current light emitting diode in the 5th embodiment, luminescence unit can be the AC-operated light sources of alternating-current light emitting diode, incandescent lamp or fluorescent lamp etc.
Five embodiment according to the present invention use most light-emitting diodes, in conjunction with microcontroller and various detecting element, realize a type lighting device with easy drive circuit.Can automatically start highlight illumination when ambient brightness is not enough, timing for cutting changes the low-light level illumination into afterwards.In addition, when having the people to enter surveyed area, lighting device can switch to highlight illumination from low-light level, so that the illumination of personnel's abundance to be provided, or produces strong brightness and colour temperature contrast, and the effractor is monitored.
The above only is embodiments of the invention, and it is not be used to limiting to claim of the present invention.
Claims (15)
1. stepwise light-emitting diode security monitoring lighting device, it is characterized in that, comprise a luminescence unit, one load and power control unit, one photosensitive switch control unit, one action detecting unit and a Power Management Unit, this luminescence unit comprises the light-emitting diode of one or more series connection, this load and power control unit receive the signal of this photosensitive switch control unit and this action detecting unit and open the light-emitting diode of the one or more series connection in this luminescence unit, send respectively a low order brightness or high-order brightness illumination, wherein this load and power control unit comprise a microcontroller, operate with write-in program.
2. two stepwise light-emitting diode security monitoring lighting devices according to claim 1 is characterized in that, the light-emitting diode of described a plurality of series connection has identical or different luminous power and colour temperature.
3. stepwise light-emitting diode security monitoring lighting device, it is characterized in that, comprise a Power Management Unit, a photosensitive switch control unit, action detecting unit, a load and power control unit and a luminescence unit, this luminescence unit comprises the light-emitting diode of a plurality of series connection, when this photosensitive switch control unit detects ambient brightness and is lower than a preset value, this load and power control unit are opened the part light-emitting diode in this luminescence unit, make this luminescence unit produce a low order brightness; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed all light-emitting diodes in this luminescence unit; When this action detecting unit detected an intruder operation, this load and power control unit were opened all light-emitting diodes in this luminescence unit, made this luminescence unit produce a high-order brightness and lasting one section Preset Time; Wherein, the drive current of this luminescence unit is definite value.
4. two stepwise light-emitting diode security monitoring lighting devices according to claim 3, it is characterized in that, those light-emitting diodes comprise N low color temperature light emitting diode and M high color temperature LED, wherein this load and power control unit are opened described low color temperature light emitting diode so that this luminescence unit produces low order brightness, this load and power control unit are opened described low color temperature light emitting diode and those high color temperature LEDs simultaneously so that this luminescence unit produces this high-order brightness, and wherein N, M are positive integer.
5. two stepwise light-emitting diode security monitoring lighting devices according to claim 4, it is characterized in that, this luminescence unit comprises a switch, is coupled to the two ends of described high color temperature LED, wherein this switch conducting corresponding to a detection signal of this action detecting unit.
6. two stepwise light-emitting diode security monitoring lighting devices according to claim 3 is characterized in that, this luminescence unit comprises a plurality of switches, couples respectively the two ends of described light-emitting diode.
7. described two stepwise light-emitting diode security monitoring lighting devices according to claim 3, it is characterized in that, this luminescence unit has at least one the first current circuit and one second current circuit, this first current circuit is through the part light-emitting diode in this luminescence unit, and this second current circuit is through all light-emitting diodes in this luminescence unit.
8. stepwise light-emitting diode security monitoring lighting device, it is characterized in that, comprise a Power Management Unit, a photosensitive switch control unit, action detecting unit, a load and power control unit, a zero cross detection circuit and a luminescence unit, this luminescence unit comprises a phase angle controller and an AC-operated light sources, the AC-operated light sources that the series connection of this phase angle controller is above-mentioned and be connected to AC power; Wherein, this load and power control unit comprise a microcontroller, control the ON time of this phase angle controller with write-in program, adjust the average electrical power of this luminescence unit with this; When this photosensitive switch control unit detected ambient brightness and is lower than a preset value, this load and power control unit were opened this luminescence unit, make this luminescence unit produce a low order brightness; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed this luminescence unit; When this action detecting unit detected an intruder operation, this load and power control unit improved the average electrical power of this luminescence unit, made this luminescence unit produce a high-order brightness and lasting one section Preset Time.
9. two stepwise light-emitting diode security monitoring lighting devices according to claim 8 is characterized in that, this AC-operated light sources is alternating-current light emitting diode, incandescent lamp or fluorescent lamp, and this phase angle controller comprises controllable silicon.
10. two stepwise light-emitting diode security monitoring lighting devices according to claim 8 is characterized in that, the ON time of this phase angle controller is limited in t
oWith 1/ (2f)-t
oBetween, t wherein
o=(1/2 π f) sin
-1(V
t/ V
m), f is the frequency of this AC power, V
mBe the voltage amplitude of this AC power, V
tBe the required minimum voltage value of this luminescence unit of conducting.
11. two stepwise light-emitting diode security monitoring lighting devices according to claim 8 is characterized in that this luminescence unit comprises the controllable silicon of a plurality of AC-operated light sources and equal number, is connected in above-mentioned AC power with parallel way.
12. stepwise light-emitting diode security monitoring lighting device, it is characterized in that, comprise a Power Management Unit, one photosensitive switch control unit, one action detecting unit, one load and power control unit and a luminescence unit, this luminescence unit is by the alternating-current light emitting diode of X high wattage and parallel with one another composition of alternating-current light emitting diode of Y low wattage, when this photosensitive switch control unit detects ambient brightness and is lower than a preset value, this load and power control unit are opened the alternating-current light emitting diode of those low wattages, make this luminescence unit produce a low order brightness; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed this luminescence unit; When this action detecting unit detects an intruder operation, this load and power control unit are opened the light-emitting diode of those high wattages and the light-emitting diode of those low wattages simultaneously, make this luminescence unit produce a high-order brightness and lasting one section Preset Time, wherein X, Y are positive integer.
13. stepwise light-emitting diode security monitoring lighting device, it is characterized in that, comprise a power subsystem, a photosensitive switch control unit, action detecting unit, a load and power control unit and a luminescence unit, this luminescence unit comprises a rectification circuit and one or more AC-operated light sources in parallel, and this rectification circuit is coupled between above-mentioned AC-operated light sources and the AC power; Wherein, this load and power control unit are adjusted the average electrical power of this luminescence unit via this rectification circuit; When this photosensitive switch control unit detected ambient brightness and is lower than a preset value, this load and power control unit were opened this luminescence unit, make this luminescence unit produce a low order brightness; When this photosensitive switch control unit detected ambient brightness and is higher than this preset value, this load and power control unit were closed this luminescence unit; When this action detecting unit detects an intruder operation, this load and power control unit improve the average electrical power of this luminescence unit, make this luminescence unit produce a high-order brightness and lasting one section Preset Time, wherein this rectification circuit comprises a switch and a diode in parallel, this switch is controlled by this load and power control unit, wherein this rectification circuit coupled in series is between this luminescence unit and AC power, this load and power control unit are controlled short circuit or the open circuit of this switch, make respectively this luminescence unit be connected to this AC power via this switch or via this diode, to produce the brightness of total power or a half-power.
14. two stepwise light-emitting diode security monitoring lighting devices according to claim 13 is characterized in that this AC-operated light sources is alternating-current light emitting diode, incandescent lamp or fluorescent lamp.
15. two stepwise light-emitting diode security monitoring lighting devices according to claim 13 is characterized in that this switch is transistor or relay.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102017855A CN102883496A (en) | 2011-07-14 | 2011-07-14 | Safety monitoring and lighting device for two-order type light emitting diode |
| CN201610161074.2A CN105828474B (en) | 2011-07-14 | 2011-07-14 | Two stepwise light emitting diode security monitoring lighting devices |
| CN201610160945.9A CN105828473B (en) | 2011-07-14 | 2011-07-14 | Two stepwise light emitting diode security monitoring lighting devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102017855A CN102883496A (en) | 2011-07-14 | 2011-07-14 | Safety monitoring and lighting device for two-order type light emitting diode |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610161074.2A Division CN105828474B (en) | 2011-07-14 | 2011-07-14 | Two stepwise light emitting diode security monitoring lighting devices |
| CN201610160945.9A Division CN105828473B (en) | 2011-07-14 | 2011-07-14 | Two stepwise light emitting diode security monitoring lighting devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102883496A true CN102883496A (en) | 2013-01-16 |
Family
ID=47484574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102017855A Pending CN102883496A (en) | 2011-07-14 | 2011-07-14 | Safety monitoring and lighting device for two-order type light emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102883496A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747937A (en) * | 1996-02-13 | 1998-05-05 | Heath Company, Inc. | Two-level security lighting system |
| CN101107885A (en) * | 2004-12-20 | 2008-01-16 | 史蒂芬·B·海斯 | Lighting system and method |
| CN201045447Y (en) * | 2007-03-23 | 2008-04-09 | 陈家德 | Combined lighting module |
| CN201069057Y (en) * | 2007-02-16 | 2008-06-04 | 厦门通士达照明有限公司 | High light efficiency high coloration LED lamp |
| CN101246876A (en) * | 2007-02-16 | 2008-08-20 | 厦门通士达照明有限公司 | High-light efficiency high-color rendering LED lamp and method for acquiring the same |
| CN201182027Y (en) * | 2008-04-02 | 2009-01-14 | 陈家德 | Two-stage type illumination control system with two light source load |
| CN101420802A (en) * | 2008-12-02 | 2009-04-29 | 深圳市亮百佳电子科技有限公司 | The LED constant-current source that is used for the AC controllable silicon light modulation mode of illuminator |
| CN101493191A (en) * | 2007-12-27 | 2009-07-29 | 夏普株式会社 | Planar light source, display device and method for manufacturing the same |
| CN201535449U (en) * | 2009-01-15 | 2010-07-28 | 启东市众恒源照明科技有限公司 | LED lamp capable of realizing multiple color temperatures |
| CN201550328U (en) * | 2009-11-27 | 2010-08-11 | 河北理工大学 | Lighting circuit controller |
| CN101808451A (en) * | 2010-03-25 | 2010-08-18 | 东华大学 | Method for obtaining high-development adjustable color temperature white light by white and red and blue LED combination |
| CN101932175A (en) * | 2010-08-31 | 2010-12-29 | 电子科技大学 | LED constant current driving circuit capable of dimming automatically |
| CN101977475A (en) * | 2010-11-17 | 2011-02-16 | 湘潭大学 | LED constant current control device in PWM dimming mode |
| CN201830520U (en) * | 2010-10-05 | 2011-05-11 | 中南林业科技大学 | Intelligent desk lamp controller |
| CN102098846A (en) * | 2011-01-20 | 2011-06-15 | 深圳市华测检测技术股份有限公司 | Intelligent energy-saving LED (light emitting diode) lamp control system |
-
2011
- 2011-07-14 CN CN2011102017855A patent/CN102883496A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747937A (en) * | 1996-02-13 | 1998-05-05 | Heath Company, Inc. | Two-level security lighting system |
| CN101107885A (en) * | 2004-12-20 | 2008-01-16 | 史蒂芬·B·海斯 | Lighting system and method |
| CN201069057Y (en) * | 2007-02-16 | 2008-06-04 | 厦门通士达照明有限公司 | High light efficiency high coloration LED lamp |
| CN101246876A (en) * | 2007-02-16 | 2008-08-20 | 厦门通士达照明有限公司 | High-light efficiency high-color rendering LED lamp and method for acquiring the same |
| CN201045447Y (en) * | 2007-03-23 | 2008-04-09 | 陈家德 | Combined lighting module |
| CN101493191A (en) * | 2007-12-27 | 2009-07-29 | 夏普株式会社 | Planar light source, display device and method for manufacturing the same |
| CN201182027Y (en) * | 2008-04-02 | 2009-01-14 | 陈家德 | Two-stage type illumination control system with two light source load |
| CN101420802A (en) * | 2008-12-02 | 2009-04-29 | 深圳市亮百佳电子科技有限公司 | The LED constant-current source that is used for the AC controllable silicon light modulation mode of illuminator |
| CN201535449U (en) * | 2009-01-15 | 2010-07-28 | 启东市众恒源照明科技有限公司 | LED lamp capable of realizing multiple color temperatures |
| CN201550328U (en) * | 2009-11-27 | 2010-08-11 | 河北理工大学 | Lighting circuit controller |
| CN101808451A (en) * | 2010-03-25 | 2010-08-18 | 东华大学 | Method for obtaining high-development adjustable color temperature white light by white and red and blue LED combination |
| CN101932175A (en) * | 2010-08-31 | 2010-12-29 | 电子科技大学 | LED constant current driving circuit capable of dimming automatically |
| CN201830520U (en) * | 2010-10-05 | 2011-05-11 | 中南林业科技大学 | Intelligent desk lamp controller |
| CN101977475A (en) * | 2010-11-17 | 2011-02-16 | 湘潭大学 | LED constant current control device in PWM dimming mode |
| CN102098846A (en) * | 2011-01-20 | 2011-06-15 | 深圳市华测检测技术股份有限公司 | Intelligent energy-saving LED (light emitting diode) lamp control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10985596B2 (en) | Two-level LED security light with motion sensor | |
| US10582584B2 (en) | LED security light and LED security light control device thereof | |
| CN111656867A (en) | Retrofit lamp and lighting system using the same | |
| CN105828473B (en) | Two stepwise light emitting diode security monitoring lighting devices | |
| CN105828474B (en) | Two stepwise light emitting diode security monitoring lighting devices | |
| EP2695491A1 (en) | Trailing-edge-phase-controlled light modulating circuit | |
| CN102883496A (en) | Safety monitoring and lighting device for two-order type light emitting diode | |
| CN203814005U (en) | LED light modulation circuit with power-on trigger lock memory function | |
| CN101707840B (en) | Alarm light circuit applicable for airfield runway | |
| CN101562923A (en) | LED control device | |
| Huaqiu et al. | An intelligent control of LED street lamp based on temperature sensing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130116 |
|
| RJ01 | Rejection of invention patent application after publication |