CN202486553U - Portable compact microwave inductor - Google Patents
Portable compact microwave inductor Download PDFInfo
- Publication number
- CN202486553U CN202486553U CN2012201156865U CN201220115686U CN202486553U CN 202486553 U CN202486553 U CN 202486553U CN 2012201156865 U CN2012201156865 U CN 2012201156865U CN 201220115686 U CN201220115686 U CN 201220115686U CN 202486553 U CN202486553 U CN 202486553U
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal processing
- compact microwave
- microwave sensor
- light little
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a portable compact microwave inductor. The portable compact microwave inductor comprises a PCB and a housing, wherein the housing consists of a housing cover and a base which are buckled together; the PCB is mounted between the housing cover and the base, comprises an induction antenna circuit, a signal processing circuit, a power supply, a singlechip control circuit and a relay output circuit, and further comprises an induction distance adjustment potentiometer and an induction time adjustment potentiometer; and the potentiometers can be rotated to ensure that the induction distance can be adjusted from 10cm to 3m and the induction time can be adjusted from 1s to 180s. According to the utility model, a planar antenna, a signal processing and control module and other modules are integrated on one circuit board, so that the portable compact microwave inductor has the advantages of small size, convenience and flexibility in installation, accuracy and sensitivity in signal detection, wide detection range and adjustable induction distance and time.
Description
Technical field
The utility model relates to a kind of microwave sensor, and especially a kind of induction antenna and signal Processing control and the light little compact microwave sensor of output circuit on a PCB of collecting belongs to the microwave induced communications field.
Background technology
At present, microwave sensor has been widely used in the control of security protection, energy-saving illumination, automation control system and as the inductive switch of ATM video recording control system etc.But the front end of microwave induced system commonly used mainly is to adopt special microwave induced module or easy toroidal inductive antenna on the market.This common structural is implying the shortcoming of many manufacturings and use, is to adopt induction antenna and signal Processing separated structures like the special microwave induced module overwhelming majority, and volume is bigger, and price is higher; Adopt then poor stability of easy toroidal inductive antenna, detection sensitivity is low, and investigative range is little, and rate of false alarm is high, is on the point of easily and floats, and is on the point of a little to be lower than 1GHz.Therefore, though the toroidal inductive antenna disturbs serious environmental day by day several years ago just releasing on the market at present various electric fields, toroidal inductive antenna applications scope is more and more littler.
Therefore be necessary to develop a kind of novel light little compact microwave sensor; Make it adopt planar antenna, wait other module to be integrated on the very little PCB, reduce the volume of microwave sensor greatly with the signal Processing and the control of inductor; The convenient installation and use flexibly; And the unique design of induction antenna makes its acquisition of signal more accurate, sensitive, has enlarged the investigative range of inductor, has adjustable function of distance of reaction and sensitive time.
Summary of the invention
The utility model provides a kind of employing planar antenna to prior art problems, is integrated on the circuit board with modules such as signal Processing and controls, and volume is little, and is easy for installation flexible; Input is accurate, sensitive, and investigative range is big, and has the light little compact microwave sensor of distance of reaction and sensitive time adjustable function.
In order to solve the problems of the technologies described above, the utility model is realized through following technical scheme:
Described a kind of light little compact microwave sensor comprises printed circuit board (PCB) and shell, and said shell is made up of the cap and the base of mutual fastening; Described printed circuit board (PCB) is installed between said cap and the base; Comprise inductive antenna circuit, signal processing circuit, power supply, single chip machine controlling circuit and relay output circuit, described inductive antenna circuit and signal processing circuit, power supply, single chip machine controlling circuit and relay output circuit are integrated being embedded on the printed circuit board (PCB).
Further; Said power supply is connected with said inductive antenna circuit, signal processing circuit, single chip machine controlling circuit and relay output circuit respectively; The output terminal of said inductive antenna circuit is connected with the input end of said signal processing circuit; The output terminal of said signal processing circuit is connected with said single chip machine controlling circuit, and said relay output circuit is connected with said single chip machine controlling circuit.
Further, the microwave oscillator that said inductive antenna circuit is made up of tours antenna and microwave triode constitutes, and frequency of operation is 2.4GHz, and tours antenna adopts the embedded PCB plate micro loop antenna of plane.
Further, said signal processing circuit is connected to form by input signal control circuit, low-pass filter circuit, primary signal amplifying circuit and secondary signal amplifying circuit in order, and each circuit adopts operational amplifier LM324/S0.
Further said single chip machine controlling circuit comprises single-chip microcomputer, reset circuit, oscillatory circuit, distance of reaction adjustment potentiometer and sensitive time adjustment potentiometer, and single-chip microcomputer adopts the microwave special microprocessor ATtiny13A of built-in 8 Precision A modules.
Further, said relay output circuit comprises relay, control triode and four line terminals.Relay uses dry-reed relay.
Further, said shell is processed by plastic material.
Further, it is 53mm that said shell is of a size of length, and height is 4mm, and wide is 13.6mm。
Further, said cap is provided with four circular holes, and wherein two circular holes face distance of reaction adjustment potentiometer and sensitive time adjustment potentiometer respectively, and two other circular hole faces two LED lights that said printed circuit board (PCB) is provided with respectively.
Further, through rotating said distance of reaction adjustment potentiometer and sensitive time adjustment potentiometer, can realize in the interior and sensitive time 1s-180s of distance of reaction 10cm-3m adjustable.
The described a kind of light little compact microwave sensor principle of work of the utility model is: inductive antenna circuit moves the echo that reflect through the outside launched microwave of embedded PCB plate micro loop antenna with receiving by human body etc. by inner microwave oscillator, through microwave triode is mixed be on the point of after beat detect faint signal.This signal through signal processing circuit detect, amplification, filtering, multiple ratio and output to single-chip microcomputer after the delay process and carry out analog to digital conversion; The output high level was given the relay output circuit after single-chip microcomputer compared discriminating and time-delay control and treatment; Thereby make control triode conducting pilot relay output switching signal, light LED light simultaneously.
The advantage of the utility model is: a kind of light little compact microwave sensor is provided, has adopted planar antenna, be integrated on the circuit board with modules such as signal Processing and controls, volume is little, and is easy for installation flexible; Input is accurate, sensitivity, and investigative range is big, and has distance of reaction and adjustable function of sensitive time.
Description of drawings
Fig. 1 is the principle block diagram of the described a kind of light little compact microwave sensor of the utility model.
The division mark is following in the accompanying drawing: 1, printed circuit board (PCB); 11, inductive antenna circuit; 111, tours antenna; 112, microwave triode; 12, signal processing circuit; 121, input signal control circuit; 122, low-pass filter circuit; 123, primary signal amplifying circuit; 124, secondary signal amplifying circuit; 13, power supply; 14, single chip machine controlling circuit; 141, single-chip microcomputer; 142, reset circuit; 143, oscillatory circuit; 144, distance of reaction adjustment potentiometer; 145, sensitive time adjustment potentiometer; 15, relay output circuit; 151, relay; 152, control triode; 153, four line terminals.
Embodiment
Shown in accompanying drawing 1; A kind of principle block diagram of light little compact microwave sensor; Comprise inductive antenna circuit 11, signal processing circuit 12, power supply 13, single chip machine controlling circuit 14 and relay output circuit 15; Said power supply 13 is connected with relay output circuit 15 with said inductive antenna circuit 11, signal processing circuit 12, single chip machine controlling circuit 14 respectively, is each module for power supply, and the output terminal of said inductive antenna circuit 11 is connected with the input end of said signal processing circuit 12; The output terminal of said signal processing circuit 12 is connected with said single chip machine controlling circuit 14, and said relay output circuit 15 is connected with said single chip machine controlling circuit 14.The microwave oscillator that said inductive antenna circuit 11 is made up of tours antenna 111 and microwave triode 112 constitutes, and frequency of operation is 2.4GHz.Said signal processing circuit 12 is connected to form by input signal control circuit 121, low-pass filter circuit 122, primary signal amplifying circuit 123 and secondary signal amplifying circuit 124 in order.Said single chip machine controlling circuit 14 bag single-chip microcomputers 141, reset circuit 142, oscillatory circuit 143, distance of reaction adjustment potentiometer 144 and sensitive time adjustment potentiometer 145; Said reset circuit 142 is connected with said single-chip microcomputer 141 with oscillatory circuit 143, makes single-chip microcomputer 141 operate as normal, and said distance of reaction adjustment potentiometer 144 is connected with said single-chip microcomputer 141 with sensitive time adjustment potentiometer 145, imports as the manual shift signal.Said relay output circuit 15 comprises relay 151, control triode 152 and four line terminals 153; Said control triode 152 base stages are connected with said single-chip microcomputer 141, and collector is connected with said relay 151, and said relay 151 is connected with two signal wires of said four line terminals 153.
Described inductive antenna circuit 11 is integrated on the printed circuit board 1 with signal processing circuit 12, power supply 13, single chip machine controlling circuit 14 and relay output circuit 15, is installed between the cap and base of said mutual fastening.Said cap is provided with four circular holes, and wherein two face distance of reaction adjustment potentiometer 144 and sensitive time adjustment potentiometer 145 respectively, and two other faces said printed circuit board (PCB) respectively and is provided with two LED lights.The shell that cap and base constitute is processed by plastic material, is of a size of 53mmx4mmx13.6mm.
The power lead of external power source through four line terminals 153 and the direct supply of ground wire to the input 12V of system change into 5V to each module for power supply through power supply 13.Inductive antenna circuit 11 through embedded PCB plate micro loop antenna 111 outside launched microwaves, is that 10cm～3m adjustable Space Microwave guard district produce an oval radius along tours antenna 111 axis directions by inner microwave oscillator.Receive simultaneously by human body etc. and move and the echo of reflection; Former microwave field that echo that when physical activity, reflects and tours antenna 111 send or frequency coherence relate to and change; According to Doppler effect; The PN junction of microwave triode 112 with former microwave and echo mixing after beat detect and to draw faint frequency shift signal, promptly detect the movable signal of human body.Movable signal sends signal processing circuit 12 to, successively through the amplifier LM324/S0 of input signal control circuit 121, low-pass filter circuit 122, primary signal amplifying circuit 123 and secondary signal amplifying circuit 124 to signal detect, filtering, amplification, multiple ratio and the movable signal of suitable single-chip microcomputer 141 input ranges that obtain amplifying after the delay process.Movable signal after 141 pairs of processing and amplifying of single-chip microcomputer carries out analog to digital conversion, the undesired signal that the removal amplitude is too little, and only the frequency shift signal with certain intensity changes into the different constant amplitude pulse of width.Have only the enough big monomer signal of width such as the movable signal of human body, vehicle etc., 2～3 burst pulses are perhaps arranged in two seconds, could be thought effective signal by single-chip microcomputer 141 as taking precautions against the edge district people movable signal that 2～3 steps produced of walking about.If more weak undesired signal such as small size animal are walked about, at a distance trees rock, high frequency communication signal, the undesired signal that produces when lightning and household electrical appliance switch at a distance, single-chip microcomputer 141 will be identified as invalid signals.In case recognize the useful signal of real big movement of objects, single-chip microcomputer 141 produces delay control signal, and the output high level is given relay output circuit 15, makes 152 conductings of control triode, thus pilot relay 151 output switching signals.Switching signal outputs to external unit through two signal wires of four line terminals 153, and single-chip microcomputer 141 is lighted LED light simultaneously, and indication detects useful signal.Apart from adjustment potentiometer 144 and sensitive time adjustment potentiometer 145, can realize in the distance of reaction 10cm-3m and adjustable in the sensitive time 1s-180s that through rotary inductive when turning clockwise, distance of reaction increases, the sensitive time shortens, sensitivity increases.
This light little compact microwave sensor adopts the special-purpose single chip computer AT tiny13A of microwave, is 8 AVR microprocessors of a high-performance, low-power consumption, and clock frequency is 20MHz.When powering up for the first time, system is locking 17 seconds, during accomplish the initialization of single-chip microcomputer and set up electric field, at this moment LED light is extinguished after glittering 17 seconds, system gets into detected state automatically.When detecting useful signal, 8 seconds signal output will be arranged, and LED light is bright, with the indication detected state.
Obviously the foregoing description is not the restriction to the utility model, and above-mentioned a kind of light little compact microwave sensor can also have other many variations.Though combined above-mentioned example to go through the utility model, some that should be understood that professional person in the industry can obviously expect are identical, and alternative scheme all falls within the protection domain that the utility model claim limited.
Claims (9)
1. one kind light little compact microwave sensor comprises printed circuit board (PCB) (1) and shell, it is characterized in that, said shell is made up of the cap and the base of mutual fastening; Described printed circuit board (PCB) (1) is installed between said cap and the base; Comprise inductive antenna circuit (11), signal processing circuit (12), power supply (13), single chip machine controlling circuit (14) and relay output circuit (15), described inductive antenna circuit (11) is integrated being embedded on the printed circuit board (PCB) (1) with signal processing circuit, power supply (13), single chip machine controlling circuit (14) and relay output circuit (15).
2. light little compact microwave sensor according to claim 1; It is characterized in that; Said power supply (13) is connected with said inductive antenna circuit (11), signal processing circuit (12), single chip machine controlling circuit (14) and relay output circuit (15) respectively; The output terminal of said inductive antenna circuit (11) is connected with the input end of said signal processing circuit (12); The output terminal of said signal processing circuit (12) is connected with said single chip machine controlling circuit (14), and said relay output circuit (15) is connected with said single chip machine controlling circuit (14).
3. light little compact microwave sensor according to claim 2 is characterized in that, the microwave oscillator that said inductive antenna circuit (11) is made up of tours antenna (111) and microwave triode (112) constitutes, and frequency of operation is 2.4GHz.
4. light little compact microwave sensor according to claim 3; It is characterized in that said signal processing circuit (12) is to be connected to form in order by input signal control circuit (121), low-pass filter circuit (122), primary signal amplifying circuit (123) and secondary signal amplifying circuit (124).
5. light little compact microwave sensor according to claim 4; It is characterized in that said single chip machine controlling circuit (14) comprises single-chip microcomputer (141), reset circuit (142), oscillatory circuit (143), distance of reaction adjustment potentiometer (144) and sensitive time adjustment potentiometer (145).
6. light little compact microwave sensor according to claim 5 is characterized in that, said relay output circuit (15) comprises relay (151), control triode (152) and four line terminals (153).
7. light little compact microwave sensor according to claim 6 is characterized in that said shell is to be processed by plastic material.
8. want 7 described light little compact microwave sensors according to right, it is characterized in that the length of said shell is 53mm, height is 4mm, and wide is 13.6mm.
9. light little compact microwave sensor according to claim 8; It is characterized in that; Said cap is provided with four circular holes; Wherein two circular holes face distance of reaction adjustment potentiometer (144) and sensitive time adjustment potentiometer (145) respectively, and two other circular hole faces two LED lights that said printed circuit board (PCB) (1) is provided with respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201156865U CN202486553U (en) | 2012-03-23 | 2012-03-23 | Portable compact microwave inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201156865U CN202486553U (en) | 2012-03-23 | 2012-03-23 | Portable compact microwave inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486553U true CN202486553U (en) | 2012-10-10 |
Family
ID=46960962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201156865U Expired - Fee Related CN202486553U (en) | 2012-03-23 | 2012-03-23 | Portable compact microwave inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202486553U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019136A (en) * | 2012-11-30 | 2013-04-03 | 浙江明烁电子科技有限公司 | Infrared induction control circuit |
| CN105891782A (en) * | 2015-01-06 | 2016-08-24 | 宁波能亮光电科技有限公司 | Microwave radar inductor |
| CN107104664A (en) * | 2016-02-23 | 2017-08-29 | 深圳市佳伟思智能照明有限公司 | Miniature microwave induced module |
-
2012
- 2012-03-23 CN CN2012201156865U patent/CN202486553U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019136A (en) * | 2012-11-30 | 2013-04-03 | 浙江明烁电子科技有限公司 | Infrared induction control circuit |
| CN103019136B (en) * | 2012-11-30 | 2016-06-15 | 浙江明烁电子科技有限公司 | Infrared induction control circuit |
| CN105891782A (en) * | 2015-01-06 | 2016-08-24 | 宁波能亮光电科技有限公司 | Microwave radar inductor |
| CN107104664A (en) * | 2016-02-23 | 2017-08-29 | 深圳市佳伟思智能照明有限公司 | Miniature microwave induced module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204632030U (en) | A kind of infrared microwave dual technology detector | |
| CN202486553U (en) | Portable compact microwave inductor | |
| CN103278862A (en) | Passive infrared detector and detection method adopting same | |
| CN201773465U (en) | Passive wireless infrared alarming device | |
| CN201420955Y (en) | Multifunctional intelligent handhold illumination device | |
| CN208224370U (en) | A kind of non-contact prior-warning device of high direct voltage | |
| CN203659157U (en) | Wrist alarm device | |
| CN206056643U (en) | A kind of environmental detection set for showing index | |
| CN205750330U (en) | A kind of touch switch of Smart Home | |
| CN204719939U (en) | A kind of formaldehyde pollution detection alarm Intelligent bracelet | |
| CN204758128U (en) | Temperature detection circuit structure based on audio interface | |
| CN202261216U (en) | Microwave induction switch | |
| CN205909853U (en) | Cylinder hand -held type metal casing polymeter | |
| CN218866450U (en) | Computer input device | |
| CN205028128U (en) | Intelligent protector of historical relic show | |
| CN2601486Y (en) | Red infrared detection radio transmitter with two-way discrimination | |
| CN218995700U (en) | Small-sized infrared human body detector | |
| CN204926403U (en) | Non -contact detection's protection against electric shock attention device | |
| CN204285380U (en) | The microwave induced lamp of intelligent radio human body | |
| CN205193815U (en) | Portable data collection station | |
| CN205015633U (en) | Smart watch | |
| CN202305023U (en) | Intelligent temperature sensor | |
| CN203662083U (en) | Electromagnetic radiation detection belt with direction-finding function | |
| CN212727512U (en) | Intelligent energy-saving switch | |
| CN203840315U (en) | Improved capacitive touch switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20150323 |
|
| EXPY | Termination of patent right or utility model |