CN104768295A - Lighting system based on piezoelectric sensor - Google Patents
Lighting system based on piezoelectric sensor Download PDFInfo
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- CN104768295A CN104768295A CN201510146070.2A CN201510146070A CN104768295A CN 104768295 A CN104768295 A CN 104768295A CN 201510146070 A CN201510146070 A CN 201510146070A CN 104768295 A CN104768295 A CN 104768295A
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Abstract
A lighting system based on a piezoelectric sensor comprises multiple lighting units. The lighting units comprise rectifiers which are bridge rectifiers, the input ends of the rectifiers are connected with the commercial power through lighting lamps HL, and an on-off control circuit is connected between the output ends of the rectifiers. The on-off control circuit comprises a single-line thyristor, a filter circuit, a light control circuit and a piezoelectric induction circuit which are sequentially connected. Fourth pins of the bridge rectifiers are connected with a first pin of the single-line thyristor, third pins of the bridge rectifiers are connected with a second pin of the single-line thyristor, and a third pin of the single-line thyristor is connected with the light control circuit. The lighting system has the advantages of being high in sensitivity and anti-jamming capacity, long in service life and the like.
Description
Technical field
The present invention relates to interior of building lighting field, particularly relate to a kind of illuminator based on piezoelectric transducer.
Background technology
The corridor that present stage building buildings such as () buildings, market and office buildings is inner, the illuminating lamp that corridor place uses is the acousto-optic inductive lighting lamp of powering with 220V.Illuminating lamp opens illumination by audio-switch, and audio-switch utilizes the footsteps of people in night, voice to start audio-switch.Audio-switch has very large shortcoming, is mainly manifested in: (1) audio-switch sensitivity is aging along with the increase of conduction time, thus transducer can be made insensitive, needs very large sound ability activation control circuit; (2) poor anti jamming capability, the interference sound such as vehicle whistle also can cause illuminating lamp to be opened, thus cause the wasting of resources; (3) maintenance maintenance cost is high, is subject to dust, the impact such as sensor ageing, and audio-switch uses a period of time just to need to change, thus brings maintenance cost to raise, and makes troubles to routine use.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes a kind of illuminator based on piezoelectric transducer, and it possesses the advantages such as the strong and long service life of highly sensitive, antijamming capability.
To achieve these goals, technical scheme of the present invention is:
A kind of illuminator based on piezoelectric transducer, comprise several lighting units, described lighting unit comprises: rectifier, described rectifier is bridge rectifier, the input of described rectifier connects civil power by illuminating lamp HL, ON-OFF control circuit is connected with between the output of described rectifier, described ON-OFF control circuit comprises the single file thyristor connected successively, filter circuit, light-operated circuit and piezoelectricity sensor circuit, 4th pin of described bridge rectifier connects the 1st pin of single file thyristor, 3rd pin of described bridge rectifier connects the 2nd pin of single file thyristor, 3rd pin of described single file thyristor connects light-operated circuit, described piezoelectricity sensor circuit comprises piezoelectric transducer Y1, 1st pin of described piezoelectric transducer Y1 connects the 3rd pin of bridge rectifier, 2nd pin of described piezoelectric transducer Y1 connects the input of inverter F1, resistance R2 is connected with between the input of described inverter F1 and output, the output of described inverter F1 connects the input of inverter F2, the output of described inverter F2 is connected light-operated circuit by electric capacity C1 with resistance R3 successively.
Described light-operated circuit comprises: photodiode VD1, the positive pole of described photodiode VD1 connects the input of inverter F3, the negative pole of described photodiode VD1 connects the 3rd pin of bridge rectifier, described photodiode VD1 is connected in parallel resistance R4, the input of described inverter F3 connects the 3rd pin of bridge rectifier by resistance R1, the input collector electrode of connecting triode VT and the negative pole of diode VD2 respectively of described inverter F3, the base stage of described triode VT is successively by resistance R5, resistance R6 connects the 3rd pin of single file thyristor, the emitter of described triode VT connects the 3rd pin of bridge rectifier, the positive pole of described diode VD2 connects the input of inverter F6, node between the output contact resistance R5 of described inverter F6 and resistance R6, the input of described inverter F6 connects the 3rd pin of bridge rectifier by electric capacity C2, the input of described inverter F6 connects the output of inverter F5 by resistance R7, the input of described inverter F5 connects the 3rd pin of bridge rectifier by resistance R8, described resistance R8 is connected in parallel electric capacity C3, the input of described inverter F3 connects the 1st pin of inverter F4 by resistance R9, the output of described inverter F3 connects the input of inverter F4, the output of described inverter F4 connects the input of inverter F5 by the diode VD3 of forward conduction.
Described filter circuit is the resistance R10 and electric capacity C4 that are connected in series, described resistance R10 connects the 4th pin of bridge rectifier, described electric capacity C4 connects the 3rd pin of bridge rectifier, and described resistance R10 is connected the 1st pin of inverter F4 with the node between electric capacity C4.
Described inverter F1, F2, F3, F4, F5 and F6 are all independently inverters.
Described inverter F1, F2, F3, F4, F5 and F6 are integrated inverter, and the model of described integrated inverter is CC4069.
Beneficial effect of the present invention is:
(1) have higher sensitivity, piezoelectric transducer is embedded in stair or introduction place when building stair, and after imbedding, not by external environment influence, sensitivity keeps stable;
(2) antijamming capability is strong, because the subsurface that people passes by imbedded by piezoelectric transducer, only have people's process, just can produce pressure to piezoelectric transducer, piezoelectric transducer converts pressure to the signal of telecommunication;
(3) piezoelectric transducer is once imbed, and need not change, reduce maintenance cost, and piezoelectric transducer can not be aging with the increase of circuit working time, can ensure permanent stable operation.
Accompanying drawing explanation
Fig. 1 overall structure block diagram of the present invention.
Fig. 2 physical circuit connection layout of the present invention.
Embodiment
In order to better understand technical scheme of the present invention, below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figures 1 and 2, a kind of illuminator based on piezoelectric transducer, comprise several lighting units, described lighting unit comprises: rectifier, described rectifier is bridge rectifier, the input of described rectifier connects civil power by illuminating lamp HL, ON-OFF control circuit is connected with between the output of described rectifier, described ON-OFF control circuit comprises the single file thyristor connected successively, filter circuit, light-operated circuit and piezoelectricity sensor circuit, 4th pin of described bridge rectifier connects the 1st pin of single file thyristor, 3rd pin of described bridge rectifier connects the 2nd pin of single file thyristor, 3rd pin of described single file thyristor connects light-operated circuit, described piezoelectricity sensor circuit comprises piezoelectric transducer Y1, 1st pin of described piezoelectric transducer Y1 connects the 3rd pin of bridge rectifier, 2nd pin of described piezoelectric transducer Y1 connects the input of inverter F1, resistance R2 is connected with between the input of described inverter F1 and output, the output of described inverter F1 connects the input of inverter F2, the output of described inverter F2 is connected light-operated circuit by electric capacity C1 with resistance R3 successively.
Described light-operated circuit comprises: photodiode VD1, the positive pole of described photodiode VD1 connects the input of inverter F3, the negative pole of described photodiode VD1 connects the 3rd pin of bridge rectifier, described photodiode VD1 is connected in parallel resistance R4, the input of described inverter F3 connects the 3rd pin of bridge rectifier by resistance R1, the input collector electrode of connecting triode VT and the negative pole of diode VD2 respectively of described inverter F3, the base stage of described triode VT is successively by resistance R5, resistance R6 connects the 3rd pin of single file thyristor, the emitter of described triode VT connects the 3rd pin of bridge rectifier, the positive pole of described diode VD2 connects the input of inverter F6, node between the output contact resistance R5 of described inverter F6 and resistance R6, the input of described inverter F6 connects the 3rd pin of bridge rectifier by electric capacity C2, the input of described inverter F6 connects the output of inverter F5 by resistance R7, the input of described inverter F5 connects the 3rd pin of bridge rectifier by resistance R8, described resistance R8 is connected in parallel electric capacity C3, the input of described inverter F3 connects the 1st pin of inverter F4 by resistance R9, the output of described inverter F3 connects the input of inverter F4, the output of described inverter F4 connects the input of inverter F5 by the diode VD3 of forward conduction.
Described filter circuit is the resistance R10 and electric capacity C4 that are connected in series, described resistance R10 connects the 4th pin of bridge rectifier, described electric capacity C4 connects the 3rd pin of bridge rectifier, and described resistance R10 is connected the 1st pin of inverter F4 with the node between electric capacity C4.
The input of described inverter F3 is connected the output of inverter F2 successively with electric capacity C1 by resistance R3.
Described inverter F1, F2, F3, F4, F5 and F6 both can be independently inverters, also can be the integrated inverter CC4069 that six inverters are integrated together.Adopt integrated inverter more can save cost and space.
During use, piezoelectric transducer is embedded in the correct position (under having the corridor of people's process, when pressure signal is converted to the signal of telecommunication through out-of-date by people) of interior of building, such as, on corridor, corridor mouth is imported and exported and corner, when having people through out-of-date, piezoelectric transducer can convert pressure to the signal of telecommunication, sends start signal to main circuit, at this moment main circuit is opened, illuminator works, and closes, thus reach energy-conservation function through delay circuit time delay after two minutes.
Resistance R10, electric capacity C4 form step-down.Filter circuit.Single file thyristor VS is the noncontacting switch of illuminating lamp HL.VS conductor, HL lights; VS turns off, and HL extinguishes.
Daytime, due to photodiode VD1, to be subject to ambient light irradiation value very little, the input of inverter F3 presents electronegative potential, output presents high potential, and through inverter F4, the output of inverter F4 presents electronegative potential, diode VD3 presents cut-off state, the input of inverter F5 is high potential, and the output of inverter F6 is electronegative potential, and triode VT is in cut-off state.Because individual event turns off through supervisor's VS triggerless voltage.Illuminating lamp HL does not work.
At dark, the prevention of photodiode increases, although the input current potential of F3 rises to some extent, but still does not reach the threshold voltage opening F3, therefore is in preparation work state.Now, the output of F6 is electronegative potential, and illuminating lamp HL does not still work.
When the external world has pressure to be pressed onto on piezoelectric transducer, piezoelectric transducer converts pressure to the signal of telecommunication, converts through two-stage inverter F1 and F2, and the signal of output is coupled through electric capacity C1, is added to the input of F3 by current-limiting resistance R3.The input of F3 reaches threshold values cut-in voltage, F3 inverters work, and output is electronegative potential, and the output of F4 is high potential, and diode VD3 obtains forward voltage and conducting, and charges to electric capacity C3.The input current potential of F5 raises, then output current potential reduces, and reverse through F6, F6 output be high potential, individual event thyristor VS acquisition high potential and triggering and conducting, and HL lights.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (5)
1. the illuminator based on piezoelectric transducer, comprise several lighting units, it is characterized in that, described lighting unit comprises: rectifier, described rectifier is bridge rectifier, the input of described rectifier connects civil power by illuminating lamp HL, ON-OFF control circuit is connected with between the output of described rectifier, described ON-OFF control circuit comprises the single file thyristor connected successively, filter circuit, light-operated circuit and piezoelectricity sensor circuit, 4th pin of described bridge rectifier connects the 1st pin of single file thyristor, 3rd pin of described bridge rectifier connects the 2nd pin of single file thyristor, 3rd pin of described single file thyristor connects light-operated circuit, described piezoelectricity sensor circuit comprises piezoelectric transducer Y1, 1st pin of described piezoelectric transducer Y1 connects the 3rd pin of bridge rectifier, 2nd pin of described piezoelectric transducer Y1 connects the input of inverter F1, resistance R2 is connected with between the input of described inverter F1 and output, the output of described inverter F1 connects the input of inverter F2, the output of described inverter F2 is connected light-operated circuit by electric capacity C1 with resistance R3 successively.
2. a kind of illuminator based on piezoelectric transducer according to claim 1, it is characterized in that, described light-operated circuit comprises: photodiode VD1, the positive pole of described photodiode VD1 connects the input of inverter F3, the negative pole of described photodiode VD1 connects the 3rd pin of bridge rectifier, described photodiode VD1 is connected in parallel resistance R4, the input of described inverter F3 connects the 3rd pin of bridge rectifier by resistance R1, the input collector electrode of connecting triode VT and the negative pole of diode VD2 respectively of described inverter F3, the base stage of described triode VT is successively by resistance R5, resistance R6 connects the 3rd pin of single file thyristor, the emitter of described triode VT connects the 3rd pin of bridge rectifier, the positive pole of described diode VD2 connects the input of inverter F6, node between the output contact resistance R5 of described inverter F6 and resistance R6, the input of described inverter F6 connects the 3rd pin of bridge rectifier by electric capacity C2, the input of described inverter F6 connects the output of inverter F5 by resistance R7, the input of described inverter F5 connects the 3rd pin of bridge rectifier by resistance R8, described resistance R8 is connected in parallel electric capacity C3, the input of described inverter F3 connects the 1st pin of inverter F4 by resistance R9, the output of described inverter F3 connects the input of inverter F4, the output of described inverter F4 connects the input of inverter F5 by the diode VD3 of forward conduction.
3. a kind of illuminator based on piezoelectric transducer according to claim 2, it is characterized in that, described filter circuit is the resistance R10 and electric capacity C4 that are connected in series, described resistance R10 connects the 4th pin of bridge rectifier, described electric capacity C4 connects the 3rd pin of bridge rectifier, and described resistance R10 is connected the 1st pin of inverter F4 with the node between electric capacity C4.
4. a kind of illuminator based on piezoelectric transducer according to Claims 2 or 3, is characterized in that, described inverter F1, F2, F3, F4, F5 and F6 are all independently inverters.
5. a kind of illuminator based on piezoelectric transducer according to Claims 2 or 3, is characterized in that, described inverter F1, F2, F3, F4, F5 and F6 are integrated inverter, and the model of described integrated inverter is CC4069.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146070.2A CN104768295A (en) | 2015-03-31 | 2015-03-31 | Lighting system based on piezoelectric sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510146070.2A CN104768295A (en) | 2015-03-31 | 2015-03-31 | Lighting system based on piezoelectric sensor |
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| CN104768295A true CN104768295A (en) | 2015-07-08 |
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| CN201510146070.2A Pending CN104768295A (en) | 2015-03-31 | 2015-03-31 | Lighting system based on piezoelectric sensor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201781656U (en) * | 2010-04-27 | 2011-03-30 | 上海第二工业大学 | Lighting and sound double-control electric lamp |
| CN202603003U (en) * | 2012-05-10 | 2012-12-12 | 河北玉星生物工程有限公司 | Multifunctional sound control switch |
| WO2013189114A1 (en) * | 2012-06-21 | 2013-12-27 | Ye Xuanfeng | Optically controlled switch |
| CN204069436U (en) * | 2014-09-02 | 2014-12-31 | 黑龙江建筑职业技术学院 | The Stress control energy-saving illuminator applied in a kind of building field |
| CN204442804U (en) * | 2015-03-31 | 2015-07-01 | 济南大学 | A kind of illuminator based on piezoelectric transducer |
-
2015
- 2015-03-31 CN CN201510146070.2A patent/CN104768295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201781656U (en) * | 2010-04-27 | 2011-03-30 | 上海第二工业大学 | Lighting and sound double-control electric lamp |
| CN202603003U (en) * | 2012-05-10 | 2012-12-12 | 河北玉星生物工程有限公司 | Multifunctional sound control switch |
| WO2013189114A1 (en) * | 2012-06-21 | 2013-12-27 | Ye Xuanfeng | Optically controlled switch |
| CN204069436U (en) * | 2014-09-02 | 2014-12-31 | 黑龙江建筑职业技术学院 | The Stress control energy-saving illuminator applied in a kind of building field |
| CN204442804U (en) * | 2015-03-31 | 2015-07-01 | 济南大学 | A kind of illuminator based on piezoelectric transducer |
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Application publication date: 20150708 |