CN102034325A - Infrared induction type electronic Dingdong doorbell - Google Patents
Infrared induction type electronic Dingdong doorbell Download PDFInfo
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- CN102034325A CN102034325A CN 201010592889 CN201010592889A CN102034325A CN 102034325 A CN102034325 A CN 102034325A CN 201010592889 CN201010592889 CN 201010592889 CN 201010592889 A CN201010592889 A CN 201010592889A CN 102034325 A CN102034325 A CN 102034325A
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Abstract
The invention belongs to the technical field of electronics and relates to an infrared induction type electronic Dingdong doorbell which comprises a direct current power supply, a doorbell sound integrated circuit (IC2), an audio amplification circuit and a speaker (BL). The infrared induction type electronic Dingdong doorbell is characterized in that an infrared induction element in the circuit adopts a BH9402 pyroelectricity infrared detection module (IC1), and the audio amplification circuit adopts a direct coupling type audio amplification circuit. The doorbell is triggered to sound through infrared heat released by a human body without pressing a doorbell switch by fingers, when a guest visits, the doorbell automatically sounds Dingdong to inform an owner of opening the door for welcoming the guest. If only the set height and the position of an infrared detection window of the infrared induction type electronic doorbell are proper, the practical joke of children can be basically avoided.
Description
Technical field
The invention belongs to electronic technology field, relate to a kind of infrared-sensing type electronics ding-dong doorbell.
Background technology
The tradition doorbell is general many by keyswitch control the tinkle of bells.This traditional doorbell be difficult to avoid children's mischief ground disorderly by, thereby have many doorbells to be given it up with a period of time; Also have when running into you and going home two hands hold a lot of things, rising does not sell rings a doorbell and allows the household open the door, and needs most and informs when the household opens the door, and doorbell is not but brought into play effect.
Infrared-sensing type electronics ding-dong doorbell is to respond to by the infrared heat that human body discharges to trigger the doorbell sounding, and no longer needs the moving doorbell switch that press...withes one's finger.When the guest was visiting, doorbell can send " ding-dong " sound automatically, notifies owner to open the door and welcome the guest in.If height and position suitable that the infrared acquisition window of infrared-sensing type electronic door bell is set, the generation that can stop children's mischief phenomenon substantially.
Through test, comparison and the analysis of multiple scheme, the present invention uses a small amount of common components and parts to realize that doorbell circuit is simple in structure, cheap, the target call of dependable performance.Below describe the correlation technique that this infrared-sensing type electronics ding-dong doorbell is made in detail.
Summary of the invention
Goal of the invention and beneficial effect: the present invention responds to by the infrared heat that human body discharges to trigger the doorbell sounding, and no longer needs the moving doorbell switch that press...withes one's finger.When the guest was visiting, doorbell can send " ding-dong " sound automatically, notifies owner to open the door and welcome the guest in.If height and position suitable that the infrared acquisition window of infrared-sensing type electronic door bell is set, the generation that can stop children's mischief phenomenon substantially.
Technical characterictic: infrared-sensing type electronics ding-dong doorbell, form by direct supply, doorbell sound integrated circuit (IC2), audio amplifier circuit and loudspeaker (BL), it is characterized in that: the infrared induction element in the circuit adopts BH9402 type rpyroelectric infrared detecting module (IC1), and audio amplifier circuit adopts the direct coupled type audio amplifier circuit.
Annexation in the composition of circuit and the circuit between the components and parts
1. 1 pin of rpyroelectric infrared detecting module (IC1) connects the positive pole (VCC) of direct supply, the end of the signal output part 2 pin connecting resistance R1 of rpyroelectric infrared detecting module (IC1), 4 pin connection circuit ground (GND) of rpyroelectric infrared detecting module (IC1).
2. the other end of 1 pin connecting resistance R1 of doorbell sound integrated circuit (IC2), 2 pin of doorbell sound integrated circuit (IC2) are with the end of connecting resistance R2 and the positive pole of electrochemical capacitor C1, the negative pole connection circuit ground (GND) of the other end of resistance R 2 and electrochemical capacitor C1,3 pin of doorbell sound integrated circuit (IC2) are with the end of connecting resistance R3 and the positive pole of electrochemical capacitor C2, the negative pole connection circuit ground (GND) of the other end of resistance R 3 and electrochemical capacitor C2,4 pin connection circuit ground (GND) of doorbell sound integrated circuit (IC2), the end of 7 pin connecting resistance R4 of doorbell sound integrated circuit (IC2), the other end of 8 pin connecting resistance R4 of doorbell sound integrated circuit (IC2), 6 pin of doorbell sound integrated circuit (IC2) connect the positive pole (VCC) of direct supply.
3. 5 pin of a termination doorbell sound integrated circuit (IC2) of resistance R 5 in the direct coupled type audio amplifier circuit, the base stage of another termination NPN silicon transistor VT1 of resistance R 5, the emitter connection circuit ground (GND) of NPN silicon transistor VT1, the collector of NPN silicon transistor VT1 connects the base stage of PNP silicon transistor VT2, the emitter of PNP silicon transistor VT2 connects the positive pole (VCC) of direct supply, the connection circuit ground (GND), collector series connection loudspeaker (BL) back of PNP silicon transistor VT2.
The circuit working principle
Infrared-sensing type electronics ding-dong doorbell is made up of rpyroelectric infrared detecting module (IC1), doorbell sound integrated circuit (IC2), audio amplifier circuit and loudspeaker (BL).
When the guest is visiting, rpyroelectric infrared detecting module (IC1) is sensed the infrared radiation signal of human body outdoors by the aperture on the door, 2 pin (CP) the output trigger pip of rpyroelectric infrared detecting module (IC1), make 5 pin out gate ringing signals of doorbell sound integrated circuit (IC2), this the tinkle of bells electric signal drives loudspeaker (BL) and sends " ding-dong " sound after amplifying through silicon transistor VT1, VT2 direct coupled type.
Description of drawings
1. accompanying drawing is the circuit working schematic diagram of infrared-sensing type electronics ding-dong doorbell.
2. the IC1 in the accompanying drawing is a BH9402 type rpyroelectric infrared detecting module, and this module has 4 pins.
Embodiment
Components and parts technical requirement according to infrared-sensing type electronics ding-dong doorbell fundamental diagram shown in the drawings and description of drawings and the following stated is implemented, and can realize the present invention.
The selection of components and parts and technical parameter thereof
1.R1～R5 selects 1/8W metalfilmresistor or carbon resister for use, the resistance of resistance R 1 is 10K Ω, and the resistance of resistance R 2 is 150K Ω, and the resistance of resistance R 3 is 330K Ω, and the resistance of resistance R 4 is 500K Ω, and the resistance of resistance R 5 is 200K Ω.
2.C1 and C2 all selects the aluminum hull electrochemical capacitor of withstand voltage 10V for use, capacity is 10 μ F.
3.VT1 select 2SC9013 or 3DG6 type NPN silicon transistor for use, VT2 selects 2SC9012 or 3CG21 type PNP silicon transistor for use.
4.IC1 be BH9402 type rpyroelectric infrared detecting module, it is integrated rpyroelectric infrared sensing module, be installed in when dispatching from the factory in the grey plastic casing, P2288 type pyroelectric infrared sensor (PIR) is housed in the box handles special IC, a semisphere milky Fresnel lens is installed at test surface with the SN9210 infrared signal.This module has 4 pins: 1 pin is the orange line of VDD; 2 pin are signal output part (CP) green line; 3 pin are the blue line of Enable Pin (SL), are used for expanded function, and present embodiment Enable Pin (SL) need not; 4 pin are the VSS white wire.In a single day this module is received infrared signal, and the signal output part of module (CP) is just exported high level.
5.IC2 the audio DMOS integrated circuit of storage simulation " ding-dong " doorbell sound in selecting for use, as: the KD-253B type, the KD-253B type is soft encapsulation, the every triggering of its 1 pin once, integrated circuit KD-253B can send " ding-dong " sound of two vocal cords lingering sounds, the sound that the metalloid hitting sound is arranged, and the equal scalable of the speed of lingering sound length and rhythm.
6.BL select 0.25W, 8 Ω D.sp.s for use.
Make and debug circuit
As long as the components and parts performance of selecting for use is intact, after doorbell circuit welds, weld according to the annexation of components and parts shown in the circuit working schematic diagram in the accompanying drawing, after the conscientious confirmation of physics wiring, the circuit of this device need not debugged substantially, connects the 3V direct supply and gets final product operate as normal.
Regulate the size of resistance R 4 resistances, can change the rhythm speed of " ding-dong " sound; Regulate the size of resistance R 2, R3 resistance respectively, can change the length of " ding-dong " sound lingering sound; The resistance that suitably reduces resistance R 5 can improve the volume of loudspeaker (BL).
Installation method
When infrared-sensing type electronics ding-dong doorbell is installed, doorbell is fixed in the inboard high about 1.5m of door place, the too low child of being vulnerable to is installed to play interference and makes infrared detection module (IC1) misoperation, on door, open the aperture that a diameter is not less than 9mm, the test surface alignment apertures of infrared detection module (IC1) is got final product.
Claims (4)
1. infrared-sensing type electronics ding-dong doorbell, form by direct supply, doorbell sound integrated circuit (IC2), audio amplifier circuit and loudspeaker (BL), it is characterized in that: the infrared induction element in the circuit adopts BH9402 type rpyroelectric infrared detecting module (IC1), and audio amplifier circuit adopts the direct coupled type audio amplifier circuit.
2. infrared-sensing type electronics ding-dong doorbell according to claim 1, it is characterized in that: 1 pin of rpyroelectric infrared detecting module (IC1) connects the positive pole (VCC) of direct supply, the end of the signal output part 2 pin connecting resistance R1 of rpyroelectric infrared detecting module (IC1), 4 pin connection circuit ground (GND) of rpyroelectric infrared detecting module (IC1).
3. infrared-sensing type electronics ding-dong doorbell according to claim 1, it is characterized in that: the other end of 1 pin connecting resistance R1 of doorbell sound integrated circuit (IC2), 2 pin of doorbell sound integrated circuit (IC2) are with the end of connecting resistance R2 and the positive pole of electrochemical capacitor C1, the negative pole connection circuit ground (GND) of the other end of resistance R 2 and electrochemical capacitor C1,3 pin of doorbell sound integrated circuit (IC2) are with the end of connecting resistance R3 and the positive pole of electrochemical capacitor C2, the negative pole connection circuit ground (GND) of the other end of resistance R 3 and electrochemical capacitor C2,4 pin connection circuit ground (GND) of doorbell sound integrated circuit (IC2), the end of 7 pin connecting resistance R4 of doorbell sound integrated circuit (IC2), the other end of 8 pin connecting resistance R4 of doorbell sound integrated circuit (IC2), 6 pin of doorbell sound integrated circuit (IC2) connect the positive pole (VCC) of direct supply.
4. infrared-sensing type electronics ding-dong doorbell according to claim 1, it is characterized in that: 5 pin of a termination doorbell sound integrated circuit (IC2) of resistance R 5 in the direct coupled type audio amplifier circuit, the base stage of another termination NPN silicon transistor VT1 of resistance R 5, the emitter connection circuit ground (GND) of NPN silicon transistor VT1, the collector of NPN silicon transistor VT1 connects the base stage of PNP silicon transistor VT2, the emitter of PNP silicon transistor VT2 connects the positive pole (VCC) of direct supply, the connection circuit ground (GND), collector series connection loudspeaker (BL) back of PNP silicon transistor VT2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010592889 CN102034325A (en) | 2010-12-17 | 2010-12-17 | Infrared induction type electronic Dingdong doorbell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010592889 CN102034325A (en) | 2010-12-17 | 2010-12-17 | Infrared induction type electronic Dingdong doorbell |
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| CN102034325A true CN102034325A (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010592889 Pending CN102034325A (en) | 2010-12-17 | 2010-12-17 | Infrared induction type electronic Dingdong doorbell |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391497A (en) * | 2013-07-26 | 2013-11-13 | 吴建堂 | Multipurpose controllable ringing module |
| CN105067113A (en) * | 2015-08-14 | 2015-11-18 | 王志 | Infrared light detector |
| CN105279865A (en) * | 2015-11-09 | 2016-01-27 | 苏州美达瑞电子有限公司 | Doorbell automatic broadcasting control device based on infrared induction |
| CN106548577A (en) * | 2017-01-20 | 2017-03-29 | 周芸 | Infrared human body is close to electronic type ding-dong doorbell |
| CN106644077A (en) * | 2016-12-22 | 2017-05-10 | 中国科学院西安光学精密机械研究所 | Active and passive stereoscopic spectral imaging device with high-precision vision field matching function and detection method |
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| GB2355329A (en) * | 1999-09-27 | 2001-04-18 | Ian Sanderson | Automatic doorbell device |
| CN2650252Y (en) * | 2003-11-11 | 2004-10-20 | 王亚欣 | Wireless infrared inductive remote control door bell |
| CN2867474Y (en) * | 2005-09-24 | 2007-02-07 | 陈文良 | New-type induction doorbell |
| CN201352374Y (en) * | 2009-03-05 | 2009-11-25 | 朱凯强 | Electronic inductive doorbell |
| WO2010137801A2 (en) * | 2009-05-29 | 2010-12-02 | Chung Tae Hwang | Crime prevention system and method using monitor |
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2010
- 2010-12-17 CN CN 201010592889 patent/CN102034325A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2355329A (en) * | 1999-09-27 | 2001-04-18 | Ian Sanderson | Automatic doorbell device |
| CN2650252Y (en) * | 2003-11-11 | 2004-10-20 | 王亚欣 | Wireless infrared inductive remote control door bell |
| CN2867474Y (en) * | 2005-09-24 | 2007-02-07 | 陈文良 | New-type induction doorbell |
| CN201352374Y (en) * | 2009-03-05 | 2009-11-25 | 朱凯强 | Electronic inductive doorbell |
| WO2010137801A2 (en) * | 2009-05-29 | 2010-12-02 | Chung Tae Hwang | Crime prevention system and method using monitor |
Non-Patent Citations (1)
| Title |
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| 《电子电路制作指导》 20060131 张宪，何宇斌 门铃电路 化学工业出版社 130-134 1-4 , 第1版 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391497A (en) * | 2013-07-26 | 2013-11-13 | 吴建堂 | Multipurpose controllable ringing module |
| CN105067113A (en) * | 2015-08-14 | 2015-11-18 | 王志 | Infrared light detector |
| CN105279865A (en) * | 2015-11-09 | 2016-01-27 | 苏州美达瑞电子有限公司 | Doorbell automatic broadcasting control device based on infrared induction |
| CN106644077A (en) * | 2016-12-22 | 2017-05-10 | 中国科学院西安光学精密机械研究所 | Active and passive stereoscopic spectral imaging device with high-precision vision field matching function and detection method |
| CN106548577A (en) * | 2017-01-20 | 2017-03-29 | 周芸 | Infrared human body is close to electronic type ding-dong doorbell |
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Application publication date: 20110427 |