CN106707244B - A kind of detection method that subregion is microwave induced and microwave sensor - Google Patents
A kind of detection method that subregion is microwave induced and microwave sensor Download PDFInfo
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- CN106707244B CN106707244B CN201710015117.0A CN201710015117A CN106707244B CN 106707244 B CN106707244 B CN 106707244B CN 201710015117 A CN201710015117 A CN 201710015117A CN 106707244 B CN106707244 B CN 106707244B
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- 238000010586 diagram Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
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Abstract
The present invention provides a kind of detection methods that subregion is microwave induced, it is characterized in that being divided into 3 to 24 equal angular narrow angle control zones by 360 degree by the way that space level direction will be controlled, one narrow angle inductor, which is respectively set, in each narrow angle control zone only can be detected the object movable signal of this narrow angle control zone, is calculated according to the object movable signal that all narrow angle control zones detect and judges the active state of object in the control space.Also disclose a kind of microwave sensor for realizing this method.The present invention is by breaking conventional thought, detection is incuded by subregion to realize the detection to the faint movable signal of object, the accurate judgement for realizing the region-wide physical activity scene in control zone is provided simultaneously, it detects reliability and accuracy is good, it can be widely applied to the application scenarios of the electronic equipments such as meeting room, exhibition room, classroom, hotel automatic control, market application prospect is huge.
Description
Technical field
The present invention relates to detecting and controlling field automatically, in particular to a kind of detection method that subregion is microwave induced and micro-
Wave inductor.
Background technique
Currently, human body automatic sensing switch is mainly with pyroelectricity (PIR) sensor and microwave induced with intelligent controller
Based on device: pyroelectricity (PIR) sensor is mainly the heat radiation for passing through detection human body, and human body is generally at 37 degree, so can issue
The infrared ray of specific wavelength 10UM or so, passive type infrared probe be exactly the infrared ray by detecting 10UM or so of human-body emitting and
It works；Pyroelectricity (PIR) sensor is easy to be interfered by various heat sources, light source, due to being that passive infrared penetration power is poor, people
The infra-red radiation of body is easily blocked, and is not easy reception of being popped one's head in, when environment temperature and close human body temperature, detection and sensitivity
It is decreased obviously, causes failure in short-term sometimes.
Microwave sensor mainly uses microwave Doppler effect principle to realize, the wavelength of microwave radiation is because of wave source and sight
The relative motion of survey person and generate variation.When moving towards wave source, microwave is compressed, and wavelength becomes shorter, frequency become compared with
It is high；When moving with wave source opposite direction, wavelength becomes longer, and frequency becomes lower；The speed of movement is higher, generated frequency
Poor effect is bigger, and the difference of transmitting and received frequency caused by Doppler effect is known as Doppler frequency shift；But traditional microwave sense
It answers device that can only detect the significantly shift action of people, cannot reliably detect the minor motion of object, it is even more impossible to subregions point
Angle induction detects the faint movable signal of object, while providing and realizing precisely sentencing for the region-wide physical activity scene in control zone
It is disconnected；Subangle, subregion induction detection device achieve that this demand, greatly promote the intelligent journey of Energy Saving Control class product
Degree.
Summary of the invention
For disadvantages described above, present invention aims at how the human body minor motion of effectively reliable detection different zones,
And then realize the application extension automatically controlled.
In order to solve problem above, the invention proposes a kind of detection methods that subregion is microwave induced, it is characterised in that
3 to 24 equal angular narrow angle control zones are divided by 360 degree by the way that space level direction will be controlled, each narrow angle control is distinguished
Not She Zhi one narrow angle inductor the object movable signal of this narrow angle control zone only can be detected, according to all narrow angle control zones
The object movable signal detected calculates and judges the active state of object in the control space.
The microwave induced detection method in the subregion, it is characterised in that according to continuing for some time interior each narrow angle
The data variation of inductor obtains the current state in this control space, specifically: fine motion scene, mobile context and group activity field
Scape；It is only fixed some or certain several narrow angle control zones in a period of time there are object movable signal when detecting, then sentences
It is set to fine motion scene；Change when detecting to replace in the control zone of different narrow angle there are the presence or absence of object movable signal in a period of time
, then it is determined as mobile context；When detecting that a period of time inherent 3 or more narrow angle control zone same times all have object shifting
Dynamic signal, then be determined as group activity scene.
A kind of microwave sensor, it is characterised in that match including 3 to 24 narrow angle inductor, with narrow angle inductor
Micro-tremor signal amplification module and central processing unit, narrow-angle degree inductor is angularly uniformly arranged by horizontal direction, described
It is all trap circuits that micro-tremor signal amplification module, which cancels significantly signal,；Narrow-angle sensor is generated to be incuded with the narrow angle
The low-angle narrow beam that the detection zone of device matches realizes the scanning to the detection zone；All micro-tremor signal amplification modules
Processed signal all inputs central processing unit, and central processing unit is calculated according to the signal that all micro-tremor signal amplification modules input
And judge the active state of object in the control space.
The microwave sensor, it is characterised in that the narrow angle inductor includes microwave antenna, antenna reflective face
And the central part of the one side of antenna plate is arranged in antenna plate, antenna circuit, is equipped with shielding case, antenna circuit, which integrally wraps, to be shielded
In cover；The another side of antenna plate is arranged in microwave antenna and antenna reflective face, and antenna plate generally elongated shape rectangle face is rectangular
The length in shape face and wide ratio match with the angular dimension to be detected；Microwave antenna is elongated shape squaerial, and antenna is anti-
It penetrates face and microwave antenna is enclosed in centre, microwave antenna is consistent with the rectangle longitudinal direction of antenna reflective face.
The microwave sensor, it is characterised in that the antenna plate using microwave antenna as boundary be divided into upper reflecting surface and
Lower reflecting surface, upper reflecting surface and lower reflecting surface length are both configured to 0.3~1.5 times of microwave wavelength λ；Upper reflecting surface and lower reflection
Face is 2~4mm around the width of the reflected ray of microwave antenna.
The microwave sensor, it is characterised in that the microwave antenna is squaerial, having a size of long 19MM* wide
13.5MM* thickness 0.8MM.
The microwave sensor, it is characterised in that include micro-tremor signal processing module, angle processing in central processing unit
Module and execution signal generator module, the micro-tremor signal processing module receive the fine motion letter of micro-tremor signal amplification module input
Number, it is equipped with software filtering module in the micro-tremor signal processing module and fine motion decision threshold adjusts module, the fine motion judgement
Threshold values adjustment module is respectively that a decision threshold is respectively set in each narrow angle control zone, and the decision threshold can be by being arranged boundary
Face is adjusted separately.
The microwave sensor, it is characterised in that the output for executing signal generator module controls signal, including height
Low level, digital signal, pwm signal or 1-10V dim signal.
The present invention incudes detection by breaking conventional thought, by subregion to realize the inspection to the faint movable signal of object
It surveys, while the accurate judgement for realizing the physical activity scene of control area being provided, detect reliability and accuracy is good, it can be extensive
Applied to the application scenarios that the electronic equipments such as meeting room, exhibition room, classroom, hotel automatically control, market application prospect is huge.
Detailed description of the invention
Fig. 1 is the system block diagram of microwave sensor；
Fig. 2 is the composition explosive view of microwave sensor；
Fig. 3 is the composition front schematic view of narrow angle sensing module；
Fig. 4 is the composition reverse side schematic diagram of narrow angle sensing module；
Fig. 5 is the radiation schematic diagram in 8 directions.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the system block diagram of microwave sensor, and microwave sensor includes power supply module 1, multiple narrow angle inductions
Module 2, multiple micro-tremor signal amplification modules 3, set interface 8, execution circuit module 5 and central processing unit 4, central processing unit 4
Including micro-tremor signal processing module, angle signal identification module and signal generator module is executed, is set in micro-tremor signal processing module
There are software filtering module and fine motion decision threshold adjustment module, it is respectively each narrow angle control zone that fine motion decision threshold, which adjusts module,
A decision threshold is respectively set, the decision threshold can be adjusted separately by set interface.Execute signal generator module
Output control signal, including low and high level, pwm signal or 1-10V dim signal are outer by the output control of execution circuit module
Peripheral equipment.
Fig. 2 is the composition explosive view of microwave sensor, mounting base 14 and master including being equipped with 8 narrow angle sensing modules
Control plate 20 and pedestal 21；Input wires terminal 10, the ac high-voltage of input, which is converted into 5V direct current, through power supply module 11 is
Each unit module provides working power, and the narrow angle sensing module in 8 directions generates narrow beam to region detected respectively
It is scanned, Fig. 5 is the radiation schematic diagram in 8 directions；It, will be by corresponding narrow angle when someone enters in radiated region
Induction module detects, and transmits a signal to micro-tremor signal amplification module 13 and amplify, because its detection is small
Action signal keeps its dynamic response best so cancelling all trap circuits；When one of angle detects signal, warp
Amplified signal is sent to central processing unit 15, and signal detected by central processing unit 15 first carries out at micro-tremor signal
Reason, one group of output high level control relay are attracted to open air-conditioning port 16, another group of output high level control relay suction
It closes to open illumination and exhausting port 17, another group output 1-10V dim signal to control the port 1-10V 18 and be at 20%
Half bright state, last group export digital PWM signal to port 19, to set exhausting as low speed operation；When two of them angle
Degree detects that signal, amplified signal are sent to central processing unit 15, and signal detected by central processing unit 15 is first
Carry out micro-tremor signal processing, one group of output continues as that high level port 16 is kept it turned on, another group of output continues as high electricity
It is flat that illumination and 17 open state of exhausting port, another group output 1-10V dim signal is kept to make at its to control the port 1-10V 18
In 30% luminance state, last group export digital PWM signal to port 19, to set exhausting as low speed operation；Class according to this
It pushes away, when one angle of every increase detects signal, 16,17 port status are constant, and port 18 is every to increase an angular intensity increase
10%, when there is 4 angles to detect signal, port 19 sets exhausting and runs as middling speed, when eight angles all detect signal
16,17 port status are constant, and port 18 is 100% luminance state, and port 19 sets exhausting as high-speed cruising state；When people's whole
When leaving, 30 seconds (can set) lamps of delay are in 20% state, and exhausting is low speed operation, and closes air-conditioning, are delayed into waiting for,
After 3 minutes (can set), lamp, exhausting are all closed；Toggle switch 12 is additionally provided on master control borad 20, for adjusting operating mode and ginseng
Number selection.
Fig. 3 is the composition front schematic view of narrow angle sensing module；Fig. 4 is the composition reverse side signal of narrow angle sensing module
Figure；The present embodiment is using 5.8G microwave as detection microwave, and the wavelength X of 5.8G microwave is approximately equal to 51.7MM, rule of thumb the same day
When the reflector design of line is 1 times of wavelength, radiation intensity is maximum.Narrow angle inductor include microwave antenna 9, antenna reflective face and
Antenna plate 27, antenna plate 27 are equipped with antenna circuit, and the antenna circuit includes mixing detecting circuit, internal oscillator circuit and defeated
Impedance matching circuit out；The central part of the one side of antenna plate is arranged in antenna circuit, is equipped with shielding case 25, and antenna circuit is whole
Packet is in shielding case；The another side of antenna plate is arranged in microwave antenna and antenna reflective face, and antenna plate generally elongated shape is rectangular
Shape face, the length in rectangle face and wide ratio match with the angular dimension to be detected；Microwave antenna is elongated row rectangle day
Microwave antenna 9 is enclosed in centre by line, antenna reflective face, and microwave antenna is consistent with the rectangle longitudinal direction of antenna reflective face.It
Line plate is divided into upper reflecting surface 28 and lower reflecting surface 29 by boundary of microwave antenna, and upper reflecting surface 28 and lower 29 length of reflecting surface are all set
It is set to 0.3~1.5 times of microwave wavelength λ；30 width of upper reflecting surface 28 and lower reflecting surface 29 around microwave antenna reflected ray
Degree is 2~4mm.The length optimal design of upper reflecting surface 28 and lower reflecting surface 29 is 51.7MM, it is contemplated that cost and volume design
For 26MM or so；Antenna 9 also using with reflection towards consistent squaerial, having a size of long 19MM* wide 13.5MM* thickness 0.8MM,
Whole PC B reduces dielectric loss using RO4350B/RO4003C plate, it is ensured that the consistency of production；Shielding case 25, mainly
Shield interference signal with it is moisture-proof；Antenna plate 27 is equipped with connection terminal 26, is connected by connection terminal 26 with central processing unit.
Fig. 5 is the radiation schematic diagram in 8 directions, and the present embodiment is provided with 8 narrow angle sensing modules altogether, and control is empty
Between horizontal direction by 360 degree be divided into 8 equal angular narrow angle control zones, there are people for any one narrow angle control zone of 360 degree of spaces
Body activity, then the narrow angle control zone also only has the narrow angle sensing module of the narrow angle control zone to can detecte that there are physical activities
Signal, and the signal is input to master control borad.
In order to further enhance the stability of system, mobile inductive mode and fine motion induction mould can be added in master control borad
Formula just cuts mode after the signal of any one narrow angle sensing module input must first detect big human mobile signal
Fine motion inductive mode is changed to, minor motion is identified；Otherwise mode is maintained at mobile inductive mode, not to minor motion
It identifies.
The above disclosure is only one embodiment of the present invention, cannot limit this interest field certainly with this, this
Field those of ordinary skill is understood that realize all or part of the process of above-described embodiment, and is made according to the claims in the present invention
Equivalent variations, still fall within the range that is covered of the present invention.
Claims (7)
1. a kind of detection method that subregion is microwave induced, it is characterised in that drawn by the way that space level direction will be controlled by 360 degree
It is divided into 3 to 24 equal angular narrow angle control zones, each narrow angle control zone is respectively set one narrow angle inductor and only can detect
To the object movable signal of this narrow angle control zone, calculates and judge according to the object movable signal that all narrow angle control zones detect
Out in the control space object active state；It is obtained according to the data variation for continuing for some time interior each narrow angle inductor
The current state in this control space, specifically: fine motion scene, mobile context and group activity scene；When detect a period of time
Interior is only that there are object movable signals for fixed some or certain several narrow angle control zones, then is determined as fine motion scene；Work as detection
Alternately change in the control zone of different narrow angle there are the presence or absence of object movable signal in a period of time, is then determined as moving field
Scape；When detecting that 3 inherent or more the narrow angle control zone same time all has object movable signal for a period of time, then it is determined as group
Body activity scene.
2. a kind of microwave sensor, it is characterised in that match including 3 to 24 narrow angle inductor, with narrow angle inductor
Micro-tremor signal amplification module and central processing unit；Narrow-angle degree inductor is angularly uniformly arranged by horizontal direction；It is described narrow
Angle transducer generates the low-angle narrow beam to match with the detection zone of the narrow angle inductor, realizes to the detection zone
Scanning；All processed signals of micro-tremor signal amplification module all input central processing unit, and central processing unit is according to all fine motions
The signal of signal amplification module input calculates and judges to control the active state of object in space；By the way that space level will be controlled
Direction is divided into 3 to 24 equal angular narrow angle control zones by 360 degree, and one narrow angle sense is respectively set in each narrow angle control zone
It answers device only and the object movable signal of this narrow angle control zone can be detected, the mobile letter of object detected according to all narrow angle control zones
Number calculate and judge the active state of object in the control space；According to continuing for some time interior each narrow angle inductor
Data variation obtains the current state in this control space, specifically: fine motion scene, mobile context and group activity scene；Work as inspection
Measuring is only fixed some or certain several narrow angle control zones in a period of time there are object movable signal, then is determined as fine motion
Scene；When detecting in a period of time in the control zone of different narrow angle there are the alternately variation of the presence or absence of object movable signal, then sentence
It is set to mobile context；When detecting that a period of time inherent 3 or more narrow angle control zone same times all have object movable signal,
Then it is determined as group activity scene.
3. microwave sensor according to claim 2, it is characterised in that the narrow angle inductor include microwave antenna,
The central part of the one side of antenna plate is arranged in antenna reflective face and antenna plate, antenna circuit, is equipped with shielding case, and antenna circuit is whole
Body packet is in shielding case；The another side of antenna plate is arranged in microwave antenna and antenna reflective face, and antenna plate generally elongated shape is long
Square face, the length in rectangle face and wide ratio match with the angular dimension to be detected；Microwave antenna is elongated row rectangle
Microwave antenna is enclosed in centre by antenna, antenna reflective face, and microwave antenna is consistent with the rectangle longitudinal direction of antenna reflective face.
4. microwave sensor according to claim 3, it is characterised in that the antenna plate is divided by boundary of microwave antenna
For upper reflecting surface and lower reflecting surface, upper reflecting surface and lower reflecting surface length are both configured to 0.3~1.5 times of microwave wavelength λ；It is upper anti-
The width for penetrating the reflected ray of face and lower reflecting surface around microwave antenna is 2~4mm.
5. microwave sensor according to claim 4, it is characterised in that the microwave antenna is squaerial, having a size of
Long 19MM* wide 13.5MM* thickness 0.8MM.
6. microwave sensor according to claim 5, it is characterised in that include that micro-tremor signal handles mould in central processing unit
Block, angle processing module and execution signal generator module, it is defeated that the micro-tremor signal processing module receives micro-tremor signal amplification module
The micro-tremor signal entered, software filtering module is equipped in the micro-tremor signal processing module and fine motion decision threshold adjusts module, institute
Stating fine motion decision threshold adjustment module is respectively that a decision threshold is respectively set in each narrow angle control zone, and the decision threshold can
It is adjusted separately by set interface.
7. microwave sensor according to claim 6, it is characterised in that the output control for executing signal generator module
Signal, including low and high level is to realize on-off control and state conversion, digital signal, pwm signal or 1-10V dim signal.
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| CN110945375B (en) * | 2017-07-31 | 2023-06-27 | 大金工业株式会社 | Sensor unit and air conditioner |
| CN108872976A (en) * | 2018-02-08 | 2018-11-23 | 深圳迈睿智能科技有限公司 | Detection system and environmental management system and its application |
| CN109068532B (en) * | 2018-07-30 | 2020-05-12 | 佛山市富乐喜电子信息技术有限公司 | A Shielding Structure of Microstrip Planar Antenna Microwave Sensor |
| CN109861786B (en) * | 2019-02-27 | 2020-06-16 | 珠海格力电器股份有限公司 | Method and device for shielding data interaction, storage medium and processor |
| CN112816947A (en) * | 2021-01-22 | 2021-05-18 | 深圳迈睿智能科技有限公司 | Time-staggered microwave detection device and time-staggered microwave detection method |
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| CN101977068A (en) * | 2010-09-28 | 2011-02-16 | 电子科技大学 | Method for rapidly determining incoming wave direction without target elevation angle parameters |
| CN204188825U (en) * | 2014-10-27 | 2015-03-04 | 上海龙创节能系统股份有限公司 | Dual module infrared microwave movement detector |
| CN104700543A (en) * | 2013-12-10 | 2015-06-10 | 南充鑫源通讯技术有限公司 | Microwave-induced detection method and device used for safety protection |
| CN105242263A (en) * | 2015-09-28 | 2016-01-13 | 中国科学院上海微系统与信息技术研究所 | Vehicle existence detection apparatus and method |
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|---|---|---|---|---|
| CN101977068A (en) * | 2010-09-28 | 2011-02-16 | 电子科技大学 | Method for rapidly determining incoming wave direction without target elevation angle parameters |
| CN104700543A (en) * | 2013-12-10 | 2015-06-10 | 南充鑫源通讯技术有限公司 | Microwave-induced detection method and device used for safety protection |
| CN204188825U (en) * | 2014-10-27 | 2015-03-04 | 上海龙创节能系统股份有限公司 | Dual module infrared microwave movement detector |
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