CN102176800A - Low-power consumption infrared sensing controller - Google Patents
Low-power consumption infrared sensing controller Download PDFInfo
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- CN102176800A CN102176800A CN2011100202122A CN201110020212A CN102176800A CN 102176800 A CN102176800 A CN 102176800A CN 2011100202122 A CN2011100202122 A CN 2011100202122A CN 201110020212 A CN201110020212 A CN 201110020212A CN 102176800 A CN102176800 A CN 102176800A
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Abstract
The invention relates to a low-power consumption infrared sensing controller which comprises an infrared signal detecting and amplifying circuit, a single chip control circuit, a relay driving circuit and a step-down rectifying circuit, wherein the infrared signal detecting and amplifying circuit comprises an infrared sensor and a signal amplifying circuit thereof; the single chip control circuit comprises a single chip; the relay driving circuit comprises a relay; the step-down rectifying circuit comprises a first step-down rectifying branch and a second step-down rectifying branch; the first step-down rectifying branch converts alternating current into direct current, and supplies the direct current to the infrared signal detecting and amplifying circuit and the single chip control circuit; the second step-down rectifying branch converts alternating current into direct current, and supplies the direct current to the relay driving circuit; when the relay is switched off, the second step-down rectifying branch is in an open-circuit state; the infrared sensor amplifies the detected signal through the signal amplifying circuit and sends the amplified signal to the single chip; and the single chip sends a signal to control the on/off of the relay. Compared with the prior art, the infrared sensing controller provided by the invention is low in power consumption and cost.
Description
Technical field
The present invention relates to a kind of infrared induction controller, especially relate to a kind of low-power consumption infrared induction controller.
Background technology
Infrared induction controller be usually used in the throwing light on control of the luminophor power switch in the control field.At present, main infrared induction controller adopts capacity voltage dropping circuit to be used as step-down rectifying circuit mostly.See also Fig. 1, it is the step-down rectifier and the switching circuit schematic diagram of prior art infrared induction controller.This step-down rectifier and switching circuit comprise the reduction voltage circuit 10 be made up of capacitor C 1, resistance R 1, R2, the bridge rectifier of being made up of diode D1, D2, D3 and D4 11 and the switching circuit of being made up of relay K 1 and diode D8 12.AC power process reduction voltage circuit 10 and rectification circuit 11 step-down rectifiers are after send infrared induction controller amplifying circuit, single-chip microcomputer circuit such as (figure do not show) to after voltage stabilizing didoe ZD1 and the integrated three-terminal regulator IC1 voltage stabilizing.Single-chip microcomputer according to detected infrared signal analyzing and processing after power on/off by a triode Q2 control relay K1, thereby the Push And Release of control luminous element.Because the conducting electric current of this relay K 1 generally is about 20mA, when the AC power work of 220V, the capacitance that must make capacitor C 1 is that 0.47 μ F is as decompression capacitor.Like this, because the electric capacity of capacitor C 1 is bigger, when relay K 1 disconnected, unnecessary electric current just ran off by voltage stabilizing didoe ZD1, no matter and relay whether the power consumption of this step-down rectifier of conducting and switching circuit all can reach more than the 0.7W.
In addition, in order to reduce the power consumption of infrared induction controller, adopt the circuit structure of impulse-type relay and resistance step-down at present mostly.Because as long as paired pulses formula relay applies pulse current and can make its conducting or disconnection, in the occasion that does not need frequent switch luminous element, use time pulse relay can reduce circuit power consumption, its quiescent dissipation is about 0.1W.But, because the time pulse relay price is 10 to 20 times of common relay, adopt time pulse relay higher as the cost of the control switch of infrared induction controller, greatly limited it and used and promote.
Summary of the invention
The objective of the invention is to overcome shortcoming of the prior art with not enough, a kind of infrared induction controller of low-power consumption cheaply is provided.
The present invention is achieved by the following technical solutions: a kind of low-power consumption infrared induction controller, comprise that an infrared signal detects and amplifying circuit, and it comprises an infrared inductor and signal amplification circuit thereof; One single chip machine controlling circuit, it comprises a single-chip microcomputer; One relay drive circuit, it comprises a relay; An and step-down rectifying circuit, it comprises the first step-down rectifier branch road and the second step-down rectifier branch road, this first step-down rectifier branch road offers this infrared signal detection and amplifying circuit and single chip machine controlling circuit after alternating current is converted to direct current, this second step-down rectifier branch road offers this relay drive circuit after alternating current is converted to direct current, when this relay disconnected, this second step-down rectifier branch road was an off state; This infrared inductor is sent to single-chip microcomputer with detected signal after signal amplification circuit amplifies, single-chip microcomputer sends the adhesive and the disconnection of signal control relay.
With respect to prior art, the step-down rectifying circuit of infrared induction controller of the present invention comprises two step-down rectifier branch roads respectively, one of them step-down rectifier branch road provides DC power supply for each functional circuit, another step-down rectifier branch road provides DC power supply for relay specially, then when relay disconnects, open circuit simultaneously for this relay provides the step-down rectifier branch road of DC power supply, thereby this branch road does not consume extra power, reached the effect that reduces the infrared induction controller power consumption.
In order to understand the present invention more clearly, set forth the specific embodiment of the present invention below with reference to description of drawings.
Description of drawings
Fig. 1 is the step-down rectifier and the switching circuit schematic diagram of prior art infrared induction controller.
Fig. 2 is the structured flowchart of infrared induction controller 20 of the present invention.
Fig. 3 is the circuit theory diagrams of infrared induction controller of the present invention.
Embodiment
Please consult Fig. 2 and Fig. 3 simultaneously, Fig. 2 is the structured flowchart of infrared induction controller 20 of the present invention, and Fig. 3 is a physical circuit schematic diagram shown in Figure 2.Infrared induction controller 20 of the present invention comprises that step-down rectifying circuit 21, voltage stabilizing circuit 22, single chip machine controlling circuit 23, lighting time regulating circuit 24, sensitivity adjusting circuit 25, ambient brightness regulating circuit 26, LED indicating circuit 27, infrared signal detect and amplifying circuit 28 and relay drive circuit 29.Relay K 1 control in the relay drive circuit 29 is serially connected in the light on and off of the load electric light 30 in the AC power.AC power is through providing the direct voltage of 12V behind the step-down rectifying circuit 21, this direct voltage offers single chip machine controlling circuit 23, lighting time regulating circuit 24, sensitivity adjusting circuit 25, ambient brightness regulating circuit 26, LED indicating circuit 27 after through voltage stabilizing circuit 22 voltage stabilizings, infrared signal detects and amplifying circuit 28 and relay drive circuit 29 as stable dc power supply.Lighting time regulating circuit 24, sensitivity adjusting circuit 25, ambient brightness regulating circuit 26, LED indicating circuit 27, infrared signal detects and amplifying circuit 28 and relay drive circuit 29 insert each pin of the single-chip microcomputer 231 in the single chip machine controlling circuit 23 respectively.
Particularly, this step-down rectifying circuit 21 comprises the first step-down rectifier branch road 21a and the second step-down rectifier branch road 21b.This first step-down rectifier branch road 21a comprises first pressure unit of being made up of resistance R 21, R22 and the R23 of three series connection and first capacitor C 21 in parallel with resistance R 21 and R22 and the first bridge rectifier unit of being made up of four diode D1, D2, D3 and D4.Thereby this first step-down rectifier branch road 21a is connected in series with this voltage stabilizing circuit 22 to other each circuit stable dc power supply is provided.This second step-down rectifier branch road 21b comprises second pressure unit of being made up of resistance R 24, R25 and the R26 of three series connection and second capacitor C 22 in parallel with resistance R 24 and R25 and the second bridge rectifier unit of being made up of four diode D5, D6, D7 and D4 equally.The DC power supply of this second step-down rectifier branch road 21b output provides stable 24V DC power supply for this relay K 1 behind one second voltage-stabiliser tube ZD2.Wherein, this first bridge rectifier unit and this this diode of second bridge rectifier units shared D4.The capacitance of this first capacitor C 21 is 0.047 μ F, and the capacitance of this second capacitor C 22 is 0.33 μ F.
This voltage stabilizing circuit 22 comprise an integrated three-terminal regulator 222 and with these integrated three-terminal regulator 222 inputs and the output first voltage-stabiliser tube ZD1 and a plurality of electric capacity in parallel.This voltage stabilizing circuit 22 carries out voltage stabilizing processing back with the DC power supply of the first step-down rectifier branch road 21a provides galvanic current source Vcc for other each circuit.
This single chip machine controlling circuit 23 comprises a single-chip microcomputer 231, this single-chip microcomputer 231 receive respectively lighting time regulating circuit 24, sensitivity adjusting circuit 25, ambient brightness regulating circuit 26 and infrared signal detect and the adjusting or detection signal of amplifying circuit 28 after, then at disconnection of sending control signal control relay K1 and closed and control LED indicating circuit 27.
Lighting time regulating circuit 24 specifically comprise one lighting time regulator potentiometer 242, lighting time, regulator potentiometer 242 was sent to single-chip microcomputer 231 with conditioning signal, single-chip microcomputer 231 according to this lighting time regulator potentiometer 242 adjustment information can change time of the bright lamp of load 30 energized.
Ambient brightness regulating circuit 26 comprises a luminance potentiometer 262 and a photodiode 264 of series connection.By regulating the effective operational environment brightness value of resistance scalable of luminance potentiometer 262, respond to the external environment brightness by photodiode 264, and the ambient brightness signal is sent to single-chip microcomputer 231.
Infrared signal detects and amplifying circuit 28 comprises infrared inductor 282, and infrared inductor 282 is sent to single-chip microcomputer 231 after detected signal is passed through first signal amplifier 284 and secondary signal amplifier 286 and amplifying circuit amplification thereof.
With respect to prior art, the step-down rectifying circuit of infrared induction controller of the present invention comprises two step-down rectifier branch roads respectively, one of them step-down rectifier branch road provides DC power supply for each functional circuit, the power that this part consumes is less than 0.2W, another step-down rectifier branch road provides DC power supply for relay specially, the power of this part consumption is about 0.5W, then when relay disconnects (standby mode), for providing the step-down rectifier branch road of DC power supply, this relay opens circuit simultaneously, thereby this branch road does not consume extra power, the power that entire circuit consumes has reached the effect that reduces the infrared induction controller power consumption below 0.2W.
The present invention is not limited to above-mentioned execution mode, if various changes of the present invention or distortion are not broken away from the spirit and scope of the present invention, if these changes and distortion belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and distortion.
Claims (8)
1. a low-power consumption infrared induction controller is characterized in that: comprise
One infrared signal detects and amplifying circuit (28), comprises an infrared inductor (282) and signal amplification circuit thereof;
One single chip machine controlling circuit (23) comprises a single-chip microcomputer (231);
One relay drive circuit (29) comprises a relay (K1); And
One step-down rectifying circuit (21), it comprises the first step-down rectifier branch road (21a) and the second step-down rectifier branch road (21b), this first step-down rectifier branch road (21a) offers this infrared signal detection and amplifying circuit (28) and single chip machine controlling circuit (23) after alternating current is converted to direct current, this second step-down rectifier branch road (21b) offers this relay drive circuit (29) after alternating current is converted to direct current, when this relay (K1) disconnected, this second step-down rectifier branch road (21b) was an off state;
This infrared inductor (282) is sent to single-chip microcomputer (231) with detected signal after signal amplification circuit amplifies, single-chip microcomputer (231) sends the adhesive and the disconnection of signal control relay (K1).
2. infrared induction controller as claimed in claim 1, it is characterized in that: this first step-down rectifier branch road comprises first pressure unit of being made up of the resistance (R21, R22, R23) of three series connection and first electric capacity (C21) in parallel with two resistance (R21, R22), and the first bridge rectifier unit of being made up of four diodes (D1, D2, D3, D4); This second step-down rectifier branch road comprises second pressure unit of being made up of the resistance (R24, R25, R26) of three series connection and second electric capacity (C22) in parallel with two resistance (R24, R25), and the second bridge rectifier unit of being made up of four diodes (D5, D6, D7, D4); Wherein, this first bridge rectifier unit and this second bridge rectifier units shared, one diode (D4).
3. infrared induction controller as claimed in claim 2 is characterized in that: the capacitance of this first electric capacity (C21) is 0.047 μ F, and the capacitance of this second electric capacity (C22) is 0.33 μ F.
4. infrared induction controller as claimed in claim 1, it is characterized in that: also comprise a voltage stabilizing circuit (22), it is made up of an integrated three-terminal regulator (222) and first voltage-stabiliser tube (ZD1) and a plurality of electric capacity in parallel with this integrated three-terminal regulator input and output, and this voltage stabilizing circuit (22) carries out offering this infrared signal after voltage stabilizing is handled with the DC power supply of the first step-down rectifier branch road (21a) and detects and amplifying circuit (28) and single chip machine controlling circuit (23).
5. infrared induction controller as claimed in claim 1, it is characterized in that: also comprise the ambient brightness regulating circuit of forming by a luminance potentiometer (262) and a photodiode (264) of series connection (26), the brightness of photodiode (264) induction external environment, and the ambient brightness signal is sent to single-chip microcomputer (231), and be the brightness of scalable operational environment by the resistance of regulating luminance potentiometer (262).
6. infrared induction controller as claimed in claim 1 is characterized in that: also comprise a lighting time regulating circuit (24) that is connected with single-chip microcomputer (231).
7. infrared induction controller as claimed in claim 1, it is characterized in that: also comprise the LED indicating circuit of being made up of a resistance and a light-emitting diode (272) (27), single-chip microcomputer (231) is controlled the bright lamp of this light-emitting diode (272) or is turned off the light with the operating state of indication single-chip microcomputer (231).
8. infrared induction controller as claimed in claim 1, it is characterized in that: also comprise the sensitivity adjusting circuit of being made up of sensitivity regulator potentiometer (252) (25), single-chip microcomputer (231) is according to the sensitivity of electric potential signal control infrared inductor (282) sensing of sensitivity regulator potentiometer (252).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020212 CN102176800B (en) | 2011-01-18 | 2011-01-18 | Low-power consumption infrared sensing controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020212 CN102176800B (en) | 2011-01-18 | 2011-01-18 | Low-power consumption infrared sensing controller |
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| Publication Number | Publication Date |
|---|---|
| CN102176800A true CN102176800A (en) | 2011-09-07 |
| CN102176800B CN102176800B (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110020212 Active CN102176800B (en) | 2011-01-18 | 2011-01-18 | Low-power consumption infrared sensing controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107148120A (en) * | 2017-06-30 | 2017-09-08 | 台州市椒光照明有限公司 | A kind of induction type Width funtion LED lamp drive circuit |
| CN107317302A (en) * | 2017-08-08 | 2017-11-03 | 成都其联科技有限公司 | It is a kind of to be applied to golden guard system and take circuit with the gold for automatically powering off management function |
| CN107370113A (en) * | 2017-08-08 | 2017-11-21 | 成都其联科技有限公司 | Designed based on infrared electronic technology and there is the golden guard system of power-off protection function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201298836Y (en) * | 2008-11-21 | 2009-08-26 | 傅景灿 | Pyroelectricity infrared induction switch |
| CN201571239U (en) * | 2009-12-30 | 2010-09-01 | 昆明理工大学 | Infrared automatic switch |
| CN201965457U (en) * | 2011-01-18 | 2011-09-07 | 广州市番禺奥莱照明电器有限公司 | Low power consumption infrared-sensing controller |
-
2011
- 2011-01-18 CN CN 201110020212 patent/CN102176800B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201298836Y (en) * | 2008-11-21 | 2009-08-26 | 傅景灿 | Pyroelectricity infrared induction switch |
| CN201571239U (en) * | 2009-12-30 | 2010-09-01 | 昆明理工大学 | Infrared automatic switch |
| CN201965457U (en) * | 2011-01-18 | 2011-09-07 | 广州市番禺奥莱照明电器有限公司 | Low power consumption infrared-sensing controller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107148120A (en) * | 2017-06-30 | 2017-09-08 | 台州市椒光照明有限公司 | A kind of induction type Width funtion LED lamp drive circuit |
| CN107317302A (en) * | 2017-08-08 | 2017-11-03 | 成都其联科技有限公司 | It is a kind of to be applied to golden guard system and take circuit with the gold for automatically powering off management function |
| CN107370113A (en) * | 2017-08-08 | 2017-11-21 | 成都其联科技有限公司 | Designed based on infrared electronic technology and there is the golden guard system of power-off protection function |
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| Publication number | Publication date |
|---|---|
| CN102176800B (en) | 2013-10-23 |
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