CN104700543B - Microwave-induced detection method and device used for safety protection - Google Patents
Microwave-induced detection method and device used for safety protection Download PDFInfo
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- CN104700543B CN104700543B CN201310664509.1A CN201310664509A CN104700543B CN 104700543 B CN104700543 B CN 104700543B CN 201310664509 A CN201310664509 A CN 201310664509A CN 104700543 B CN104700543 B CN 104700543B
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- freuqncy signal
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
Abstract
The invention discloses a microwave-induced detection method and device and relates to the technical field of microwave sensor application. The microwave-induced detection method includes that through the microwave-induced detection device, Doppler effect is utilized, and receiving signal wave peak value and frequency are analyzed to judge whether someone intrudes a fortification area or not so as to start alarming. Through a method that an anti-interference judgment link is introduced for a microwave sensing detector, frequent false alarming caused by non-human-body effective intrusion behaviors is avoided, and reliability of the microwave sensing detector is improved; due to improvement on the prior art, the microwave-induced detection method can be realized by only writing a program in a single chip microcomputer, and hardware equipment does not need to be added additionally, so that complexity caused by integration of sensing technology, like tri-technology detection, of other types is avoided, and mounting cost is reduced.
Description
Technical field
The present invention relates to microwave remote sensor applied technical field, more particularly, it relates to a kind of microwave sense for security protection
Answer detection method and device.
Background technology
With the scale application of microwave semiconductor technology, the physics realization of microwave technology not only very simple, cheap, and
And volume is very little, therefore in safety-security area, Doppler's microwave remote sensor is widely used to market, and its initiative Detection Techniques is kept away
The weatherability for having exempted from infrared probe is poor, has the shortcomings that blind area apart near, and due to containing than infrared in microwave remote sensor output signal
Have the information such as more speed, intensity be easy to developer do on software it is more process improve the anti-interference of alarm and
The anti-ability failed to report.The major defect of microwave intrusion detectors is that installation requirement is higher, if Rig up error, microwave signal will
Penetrate dress the wall of window to be installed and causes frequently to report by mistake, such as leaveves, sand and dust, rain, snow and toy, it is impossible to differentiate
Effective intrusion behavior of the mankind.
The content of the invention
The technical problem to be solved in the present invention is to lack for the microwave induced detector rate of false alarm of prior art is too high
Fall into, there is provided a kind of microwave induced detection method that can differentiate the effective intrusion behavior of the mankind.
The present invention also aims to provide a kind of microwave induced detection device that can differentiate the effective intrusion behavior of the mankind.
The technical solution adopted for the present invention to solve the technical problems is to construct a kind of microwave induced detection for security protection
Method, judges to deploy troops on garrison duty region with the presence or absence of intrusion behavior and makes corresponding alarm using microwave induced detection device, the microwave sense
Detection method is answered to comprise the following steps：
S1：Using doppler transducer（1）Real-time detection is deployed troops on garrison duty region；
S2：Judge whether there is moving object in the region of deploying troops on garrison duty, into step S3 if having, otherwise return to step S1；
S3：The moving object is judged with the presence or absence of intrusion behavior, if then entering step S4, otherwise return to step S1；
S4：Triggering alarm（4）, make the alarm（4）Send alarm；
S5：Judge whether invader leaves, if then entering step S6, otherwise return to step S4；
S6：Whether the action that judgement is left is effective, if then entering step S7, otherwise return to step S4；
S7：Close alarm（4）, return to step S1.
Step S1 includes following operation：Using the doppler transducer（1）It is micro- to the field emission pulse of deploying troops on garrison duty
Ripple signal or continuous wave microwave signal, while using the doppler transducer（1）Receive anti-by the object deployed troops on garrison duty in region
It is emitted back towards pulsed microwave signals or the continuous wave microwave signal come.
Step S2 includes following operation：Using the doppler transducer（1）With predetermined sample frequency fSJing is become
The intermediate-freuqncy signal that frequency is processed is sampled, and uses intelligent control module（3）The crest value A of the intermediate-freuqncy signal is recorded, by institute
Crest value A is stated with predetermined primary peak threshold value A1Relatively, if A is more than A1, then into step S3, otherwise return to step S1.
Step S3 includes following operation：Using the doppler transducer（1）With predetermined sample frequency fSJing is become
The intermediate-freuqncy signal that frequency is processed is sampled, and using the intelligent control module（3）The crest value A of the intermediate-freuqncy signal is recorded,
Meanwhile, the intermediate-freuqncy signal is grouped sequentially in time, and the meansigma methodss of every group of intermediate-freuqncy signal crest value are calculated,
If persistently detecting the intermediate-freuqncy signal crest value more than the primary peak threshold value within the first predetermined time delay, and frequency
Meansigma methodss are in interval [f1,f2] in, and the meansigma methodss of packet intermediate-freuqncy signal crest value are presented lasting ascendant trend, then judge institute
State moving object and there is intrusion behavior, into step S4, otherwise return to step S1.
Step S5 includes following operation：Using the doppler transducer（1）With predetermined sample frequency fSJing is become
The intermediate-freuqncy signal that frequency is processed is sampled, and records the crest value A of the intermediate-freuqncy signal, by the crest value A and predetermined the
Two crest threshold value As2Relatively, if A is less than A2, and average frequency value is in interval [f1,f2] in, then into step S6, otherwise return
Step S4.
Step S6 includes following operation：Using the doppler transducer（1）With predetermined sample frequency fSJing is become
The intermediate-freuqncy signal that frequency is processed is sampled, and records the crest value A of the intermediate-freuqncy signal using the intelligent control module, together
When, the intermediate-freuqncy signal is grouped sequentially in time, and the meansigma methodss of every group of intermediate-freuqncy signal crest value are calculated, if
The intermediate-freuqncy signal crest value less than the secondary peak threshold value is persistently detected within the second predetermined time delay, and in being grouped
The meansigma methodss of frequency signal wave peak value are presented continuous decrease trend, then into step S7, otherwise return to step S4.
The present invention also provides a kind of microwave induced detection device for security protection, for the intelligent detecting in safety guard field
And warning, the microwave induced detection device includes：
The doppler transducer of detectable signal is sent during for detecting mobile target in region of deploying troops on garrison duty（1）；
For receiving doppler transducer（1）The receiver module of detectable signal（2）；
Sentence for the interval according to residing for intermediate-freuqncy signal amplitude size, variation tendency and the IF signal frequency meansigma methodss
Whether region of not deploying troops on garrison duty meets the intelligent control module of alert if（3）；And
For deploying troops on garrison duty the warning of alarm signal being sent when region has intrusion behavior described in judging in intelligent control module (3)
Device（4）.
The microwave induced detection device also includes and the intelligent control module（3）Connection, for realizing remote client
End control and the remote transmission module reported to the police（5）.
The microwave induced detection device also includes and the intelligent control module（3）The expanded function interface of connection（6）,
And with the expanded function interface（6）Separably attached personal authentication's unit（61）, image unit（62）It is single with storage
Unit（63）.
The doppler transducer（1）Quantity for multiple, and there is respectively different detection angles.
Method of the present invention by introducing anti-tampering judgement link for microwave sensor detector, it is to avoid non-human effectively to enter
The frequent wrong report caused by behavior is invaded, the reliability of microwave sensor detector is improve；Simultaneously as the present invention is to prior art
Improvement only can write single-chip microcomputer realizing by by program, without the need for extra addition hardware device, it is to avoid integrated other types are passed
Sense technology, such as three mirror detections, brought complexity, reduces installation cost.
Description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the hardware block diagram of microwave induced detection device first embodiment of the invention；
Fig. 2 is the workflow diagram of microwave induced detection method embodiment of the invention；
Fig. 3 A be microwave induced detection device first embodiment of the invention detect deploy troops on garrison duty in the range of in totally stationary shape
Probe signal oscillogram under state；
Fig. 3 B be microwave induced detection device first embodiment of the invention detect deploy troops on garrison duty in the range of someone move when spy
Head signal waveforms；
Fig. 3 C are that microwave induced detection device first embodiment of the invention detects the people in the range of deploying troops on garrison duty and is changed into from motion
Probe signal oscillogram when motionless；
Fig. 3 D be microwave induced detection device first embodiment of the invention detect deploy troops on garrison duty in the range of have fine motion probe letter
Number oscillogram；
Fig. 3 E are that microwave induced detection device first embodiment of the invention detects the people in the range of deploying troops on garrison duty and leaves detection model
Probe signal oscillogram when enclosing；
Fig. 4 is the hardware block diagram of microwave induced detection device second embodiment of the invention；
Fig. 5 is the hardware block diagram of microwave induced detection device 3rd embodiment of the invention；
Fig. 6 is the scheme of installation of microwave induced detection device fourth embodiment of the invention.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now compare accompanying drawing and describe in detail
The specific embodiment of the present invention.
Fig. 1 is the hardware block diagram of microwave induced detection device first embodiment of the invention.It is shown in Figure 1, microwave
Sensing detection device includes the doppler transducer 1 being electrically connected with successively, receiver module 2, intelligent control module 3 and alarm 4,
The doppler transducer 1 includes producing the agitator 11 of microwave signal, and in certain region the day of microwave signal is sent and receive
Line 12, the receptor 13 of the microwave signal that reception antenna 12 is received, comparison oscillator 11 sends signal frequency and receptor 13 connects
Receive signal frequency frequency mixer 14, the low pass filter 15 of filter high-frequency clutter, amplify intermediate-freuqncy signal operational amplifier 16 with
And send the signal generator 17 of alarm signal.The input and outfan of antenna 12 respectively with agitator 11 and the phase of receptor 13
Even, the outfan of agitator 11 and receptor 13 is connected respectively with the input of frequency mixer 14, the outfan of frequency mixer 14 according to
It is secondary to be connected with the input of signal generator 17 through low pass filter 15, operational amplifier 16, signal generator 17 it is defeated
Go out end and send alarm command signal to receiver module 2.Based on said structure, agitator 11 produces detection microwave signal, described
Microwave signal can be continuous wave microwave signal, or pulsed microwave signals, be launched into region of deploying troops on garrison duty by antenna 12,
Microwave can reflect after object is run into, the echo input mixer 14 that receptor 13 receives on antenna 12, frequency mixer
The original transmitted signal of the reflection wave signal of acceptance and agitator 11 is carried out hybrid primary signal with receiving signal by 14
Frequency-splitting, after frequency device 15 filters the noise signal in mixed recharge signal, is amplified frequency-splitting by operational amplifier 16,
Judge whether tranmitting frequency is identical with receives frequency, so as to judge whether in-car has moving object；Further, the present invention simultaneously
Whether there is in region of deploying troops on garrison duty moving object to differentiate using according to intermediate-freuqncy signal amplitude, and whether moving object has invasion row
For the concrete signal of microwave induced detection device of the invention described further below is processed and detection method.
Fig. 2 is the workflow diagram of microwave induced detection method embodiment of the invention.Comprise the following steps：
S1. the single-chip microcomputer in intelligent control module 3 is initialized, then provides power supply to doppler transducer 1, it is how general
Strangle probe and 1 enter working condition, to deploy troops on garrison duty field emission pulsed microwave signals or continuous wave microwave signal and reception by detection thing
Pulsed microwave signals or continuous wave microwave signal of body reflection；
S2. judge whether there is moving object in the region of deploying troops on garrison duty, into step S3 if having, otherwise return to step S1；Institute
Doppler transducer 1 is stated with predetermined sample frequency fSThe intermediate-freuqncy signal of Jing frequency-conversion processings is sampled, and records the intermediate frequency
The crest value A of signal, by the crest value A and predetermined primary peak threshold value A1Relatively, if A is more than A1, then into step S3,
Otherwise return to step S1, in the present embodiment, sets A1For 2V；In general, in the range of probe detection during without motion object
Frequency signal is maintained in noise range, and when there is object of which movement, crest value can be according to moving object is from the far and near of probe and moves
The change of amplitude and constantly convert, under normal circumstances moving object from probe more close to crest value it is bigger, object of which movement obtains faster frequency
Rate is higher.A primary peak threshold value A more than noise range can originally be set1Once, detect more than the first wave
Peak threshold value A1Crest value, then judge deploy troops on garrison duty region pre-set radius in start moving object occur；
S3. anti-tampering judgement is carried out, i.e., described moving object whether there is intrusion behavior, it is no if then entering step S4
Then return to step S1；The doppler transducer 1 is with predetermined sample frequency fSThe intermediate-freuqncy signal of Jing frequency-conversion processings is sampled,
And the crest value A of the intermediate-freuqncy signal is recorded, meanwhile, the intermediate-freuqncy signal is grouped sequentially in time, and calculate
Go out the meansigma methodss of every group of intermediate-freuqncy signal crest value, if persistently detecting more than predetermined first wave in the first predetermined time delay
The intermediate-freuqncy signal crest value of peak threshold value, and average frequency value is in interval [f1,f2], and it is grouped the meansigma methodss of intermediate-freuqncy signal crest value
Present and continue ascendant trend, then the moving object has intrusion behavior, into step S4, otherwise return to step S1.The mankind's
Translational speed be generally confined within one it is specific interval, so can substantially distinguish non-human activity, such as insect flight or
The shake of curtain.According to the definition of Doppler effect, receives frequency be equal to observer's translational speed and emission source translational speed it
Business is multiplied by tranmitting frequency, therefore, can be inferred that the respective frequencies of mankind's activity are interval by the two relative velocity, Jing operation amplifiers
After device 16 amplifies, thus its average frequency value about 10Hz-35Hz excludes non-human activity probability；Further, by right
Packet intermediate-freuqncy signal crest value is analyzed, if its crest value is in rising trend, judges that human body is continuing proximity detector,
That is intrusion behavior, so as to eliminating the wrong report caused by human body other behaviors, greatly improves the present invention in actual applications
Reliability；
S4. intelligent control module 3 sends alarm command triggering alarm 4, makes the alarm 4 send alarm；
S5. judge whether invader leaves, if then entering step S6, otherwise return to step S4；The doppler transducer 1
With predetermined sample frequency fSThe intermediate-freuqncy signal of Jing frequency-conversion processings is sampled, and records the crest value A of the intermediate-freuqncy signal,
The crest value A is compared with secondary peak threshold value A 2, if A is less than A2, and average frequency value then enters in interval [f1, f2]
Enter step S6, otherwise return to step S4, in the present embodiment, A2 is 1.5V；It is identical with S2, S3 using principle in said process, it is real
In the application of border, the ratio A1 that can be set A2 values is smaller, i.e., fence coverage is less than alarm range, and programmed decision mobile object exits police
Guard against scope, and by receives frequency to confirm the mobile object be moving human body when, into step S6；Otherwise, if going out during analysis
It is existing multiple more than preset value（1.5V）Crest value when or sampling crest value be not continuous decrease less than 300 or packeting average value
Trend, alarm 4 all can be responded persistently.
S6. whether effectively the action left is judged, if then entering step S7, otherwise return to step S4；The Doppler
Probe 1 is with predetermined sample frequency fSThe intermediate-freuqncy signal of Jing frequency-conversion processings is sampled, and records the ripple of the intermediate-freuqncy signal
Peak A, meanwhile, the intermediate-freuqncy signal is grouped sequentially in time, and calculate every group of intermediate-freuqncy signal crest value
Meansigma methodss, if the intermediate-freuqncy signal crest value less than secondary peak threshold value is persistently detected in the second predetermined time delay, and point
The meansigma methodss of group intermediate-freuqncy signal crest value are presented continuous decrease trend, then into step S7, otherwise return to step S4；By to dividing
Group intermediate-freuqncy signal crest value is analyzed, if its crest value is on a declining curve, judges that invader continues away from detector,
I.e. effective departure motion, so as to eliminate failing to report caused by the invalid departure motion of invader, such as in the range of deploying troops on garrison duty repeatedly
Turn back, otherwise, if occurring during analysis multiple more than preset value（1.5V）Crest value when or sampling crest value less than 300 or
Packeting average value is not continuous decrease trend, and alarm 4 all can be responded persistently；
S7. alarm 4, return to step S1 are closed.
In said method flow process, predetermined crest threshold value A 1 and A2 can be according to actual needs adjusted, be deployed troops on garrison duty partly so as to change
Footpath so as to adjustable in 0.3-18 rice；On the other hand, the monitoring to region of deploying troops on garrison duty may be selected pulsed microwave signals or continuous wave
Microwave signal, and according to security protection demand sampling rate adjusting, reach the purpose for reducing power consumption.
Need exist for explanation, the first predetermined time delay in the present embodiment be 1s, and different model Doppler visit
The frequency range of the intermediate-freuqncy signal of head is also differed, the doppler transducer of such as 2.4GHz, during corresponding human motion is produced
The frequency of frequency signal is 1Hz-8Hz；The doppler transducer of 5.8GHz, the frequency range of the intermediate-freuqncy signal that correspondence human motion is produced
For 5.5Hz-20Hz；The doppler transducer of 24GHz, the frequency range of the intermediate-freuqncy signal that corresponding human motion is produced is 15Hz-
80Hz；10.525GHz doppler transducers are adopted in the present embodiment, the frequency of the intermediate-freuqncy signal that its corresponding human motion is produced is
10Hz-35Hz, that is to say, that in the present embodiment, if persistently there is range value within the period more than predetermined primary peak threshold
Value A1, and frequency microwave signal again between 10Hz-35Hz, then illustrate that above-mentioned moving object is effective physical activity, equally
The microwave Doppler transducer with other corresponding bands come do identical human motion judge it is also within the scope of the present invention.
Fig. 3 A be microwave induced detection device first embodiment of the invention detect deploy troops on garrison duty in the range of in totally stationary shape
Probe signal oscillogram under state.When close without moving object, the intermediate-freuqncy signal of the oscillogram maintains noise range
It is interior, that is, to pop one's head in and do not produce detectable signal, microwave induced device remains static.
Fig. 3 B be microwave induced detection device first embodiment of the invention detect deploy troops on garrison duty in the range of someone move when spy
Head signal waveforms.The remote excess noise scope of intermediate-freuqncy signal fluctuation amplitude of Jing frequency-conversion processings, so that probe produces detectable signal,
The further action of triggering following module.
Fig. 3 C are that microwave induced detection device first embodiment of the invention detects the people in the range of deploying troops on garrison duty and is changed into from motion
Probe signal oscillogram when motionless.Correspondence caused by being reduced by people's movement velocity can be clearly observed in oscillograph to visit
The phenomenon that signal fluctuation amplitude reduces is surveyed, can be distributed in anti-region with the presence or absence of movement with effective district so as to prove that the present invention has
The ability of object.
Fig. 3 D be microwave induced detection device first embodiment of the invention detect deploy troops on garrison duty in the range of have fine motion probe letter
Number oscillogram.The fine motion, the such as tiny environmental change for mainly being caused by non-human for referring in the present invention, the pendulum of leaveves
Dynamic, curtain flickers, and because its movement velocity respective frequencies is not in investigative range, therefore its signal fluctuation amplitude is much smaller than
Probe signal fluctuation by caused by mankind's activity, therefore the method can effectively recognize mankind's activity and non-human interfering activity,
So as to reduce rate of false alarm.
Fig. 3 E are that microwave induced detection device first embodiment of the invention detects the people in the range of deploying troops on garrison duty and leaves detection model
Probe signal oscillogram when enclosing.Although moving object keeps certain movement velocity, due to doppler transducer and moving object
The distance between body, and the inversely proportional relation of the resonance amplitude of probe signal, therefore the detectable signal amplitude shown on oscillograph
It is on a declining curve.With reference to the analysis to difference frequency signal, the space motion trend of mobile object can be effectively judged.
Fig. 4 is the hardware block diagram of microwave induced detection device second embodiment of the invention, the mould of the second embodiment
Block structure composed is identical with first embodiment, main difference is that new Remote transport module 5 and electrical with intelligent control module 3
Connection, the remote transmission module 5 can be using wired or by the way of being wirelessly transferred, by remote client terminal warning system being sent
Switch order, and alarm signal is transferred in real time client.The remote transmission module 5 can adopt of the prior art
The communication modules such as TCP/IP, 3G, Wi-Fi, GSM, GPRS, CDMA, communication mode is optional, and the remote client terminal includes intelligence
Mobile phone, desktop computer, notebook computer, panel computer etc., only require the specific client application of installation, without the need for additionally adding
Plus corresponding hardware device, compatibility is greatly enhanced, easy to install.
Fig. 5 is the hardware block diagram of microwave induced detection device 3rd embodiment of the invention, the 3rd embodiment be
Modify on the basis of second embodiment, add Function Extension interface 6, and connected personal authentication's unit
61st, image unit 62 and memory element 63.Function Extension interface 6 is not limited only to connect above three functional unit, can also basis
Particular user need increase function.Personal authentication's unit 61 includes finger print identifying, eyeball certification, sound authentication, cipher authentication
Deng to the wrong report action for releasing Lawful access caused by person；Image unit 62 is used for when alarm is triggered, or mobile target is entered
Enter behind region of deploying troops on garrison duty lock onto target and shoot its dynamic or static image, the image pickup unit can adopt charge coupled cell
（Charge Coupled device,CCD）, or the networked control product such as IPCamera modules.Memory element 63 belongs to SD
Storage card（Secure Digital Memory Card）, multimedia card (Multimedia Card, MMC), XD image cards
The storage device such as (Extreme Digital-Picture Card) and CF cards (Compact Flash Card, CF card)
In any one, it is also possible to be stored in the high in the clouds platform of the Internet.After the shooting unit shoots to moving target, will
Dynamically or statically image store is to memory element 63, and for judicial evidence collection in the future admissible evidence is provided, or by dynamic
Or static image is sent to client by remote transmission unit, decided whether to start and closed according to practical situation by client root
Close alarm device.
Fig. 6 is the scheme of installation of microwave induced detection device fourth embodiment of the invention.Due to many in apparatus of the present invention
The antenna of Pu Le probes is that tool is directive, and its adjustable detection subtended angle is 0 °~140 °, therefore specific security applied field
It is inadequate for conjunction, such as, one while have the room of door and window, it is arranged on the different angles in room with window
On degree, and each and window are likely to become the approach that invader enters region of deploying troops on garrison duty.For this purpose, multiple Doppler can be visited
Head one safety-protection system of composition, each probe monitors certain radius distance in certain direction or angle, with this one is constituted
Individual stereoscopic protective system.For the moving object similar with human motion speed, the such as larger domestic pets dog of volume, it is impossible to logical
The anti-tampering program judgement of the inventive method is crossed, therefore, the height that probe is placed in 1.5m can be considered when mounted, kept away with this
Exempt from above-mentioned non-effective physical activity, or the wrong report that skeletal immature children is caused.
Embodiments of the invention are described above in conjunction with accompanying drawing, but be the invention is not limited in above-mentioned concrete
Embodiment, above-mentioned specific embodiment is only schematic, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (10)
1. a kind of microwave induced detection method for security protection, whether there is using the microwave induced detection device region that judges to deploy troops on garrison duty
Intrusion behavior simultaneously makes corresponding alarm, it is characterised in that the microwave induced detection method is comprised the following steps：
S1：Deployed troops on garrison duty region using doppler transducer (1) real-time detection；
S2：Judge whether there is moving object in the region of deploying troops on garrison duty, into step S3 if having, otherwise return to step S1；
S3：The moving object is judged with the presence or absence of intrusion behavior, if then entering step S4, otherwise return to step S1；
S4：Triggering alarm (4), makes the alarm (4) send alarm；
S5：Judge whether invader leaves, if then entering step S6, otherwise return to step S4；
S6：Whether the action that judgement is left is effective, if then entering step S7, otherwise return to step S4；
S7：Close alarm (4), return to step S1.
2. method according to claim 1, it is characterised in that step S1 includes following operation：Using described how general
Probe (1) is strangled to deploy troops on garrison duty field emission pulsed microwave signals or the continuous wave microwave signal, while visiting using the Doppler
Head (1) receives the pulsed microwave signals or continuous wave microwave signal reflected by the object deployed troops on garrison duty in region.
3. method according to claim 1, it is characterised in that step S2 includes following operation：Using described how general
Probe (1) is strangled with predetermined sample frequency fSThe intermediate-freuqncy signal of Jing frequency-conversion processings is sampled, and uses intelligent control module
(3) the crest value A of the intermediate-freuqncy signal is recorded, by the crest value A and predetermined primary peak threshold value A1Relatively, if crest value
A is more than primary peak threshold value A1, then into step S3, otherwise return to step S1.
4. method according to claim 3, it is characterised in that step S3 includes following operation：Using described how general
Probe (1) is strangled with predetermined sample frequency fSThe intermediate-freuqncy signal of Jing frequency-conversion processings is sampled, and using the Based Intelligent Control
Module (3) records the crest value A of the intermediate-freuqncy signal, meanwhile, the intermediate-freuqncy signal is grouped sequentially in time, and count
Calculation draws the meansigma methodss of every group of intermediate-freuqncy signal crest value A, if persistently detecting more than described within the first predetermined time delay
Primary peak threshold value A1Intermediate-freuqncy signal crest value A, and average frequency value be in interval [f1,f2] in, and it is grouped intermediate-freuqncy signal ripple
The meansigma methodss of peak A are presented and continue ascendant trend, then judge that the moving object has intrusion behavior, into step S4, otherwise
Return to step S1.
5. method according to claim 3, it is characterised in that step S5 includes following operation：Using described how general
Probe (1) is strangled with predetermined sample frequency fSThe intermediate-freuqncy signal of Jing frequency-conversion processings is sampled, and records the intermediate-freuqncy signal
Crest value A, by the crest value A and predetermined secondary peak threshold value A2Relatively, if crest value A is less than secondary peak threshold value A2,
And average frequency value is in interval [f1,f2] in, then into step S6, otherwise return to step S4.
6. method according to claim 5, it is characterised in that step S6 includes following operation：Using described how general
Probe (1) is strangled with predetermined sample frequency fSThe intermediate-freuqncy signal of Jing frequency-conversion processings is sampled, and using the Based Intelligent Control
Module records the crest value A of the intermediate-freuqncy signal, meanwhile, the intermediate-freuqncy signal is grouped sequentially in time, and calculate
The meansigma methodss of every group of intermediate-freuqncy signal crest value A are drawn, if persistently detecting within the second predetermined time delay less than described
Two crest threshold value As2Intermediate-freuqncy signal crest value A, and be grouped intermediate-freuqncy signal crest value A meansigma methodss present continuous decrease trend,
Then enter step S7, otherwise return to step S4.
7. a kind of microwave induced detection device for realizing microwave induced detection method as claimed in claim 1, for safety
The intelligent detecting in defence field and warning, it is characterised in that the microwave induced detection device includes：
The doppler transducer (1) of detectable signal is sent during for detecting mobile target in region of deploying troops on garrison duty；
For receiving the receiver module (2) of doppler transducer (1) detectable signal；
Differentiate cloth for interval according to residing for intermediate-freuqncy signal amplitude size, variation tendency and the IF signal frequency meansigma methodss
Whether anti-region meets the intelligent control module (3) of alert if；And
For deploying troops on garrison duty the alarm of alarm signal being sent when region has intrusion behavior described in judging in intelligent control module (3)
(4)。
8. microwave induced detection device according to claim 7, it is characterised in that the microwave induced detection device is also wrapped
Include and be connected with the intelligent control module (3), for realizing Terminal Server Client control and the remote transmission module (5) reported to the police.
9. microwave induced detection device according to claim 8, it is characterised in that the microwave induced detection device is also wrapped
The expanded function interface (6) being connected with the intelligent control module (3) is included, and it is separable with the expanded function interface (6)
Personal authentication's unit (61) of ground connection, image unit (62) and memory element (63).
10. microwave induced detection device according to claim 7, it is characterised in that the quantity of the doppler transducer (1)
For multiple, and there is respectively different detection angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664509.1A CN104700543B (en) | 2013-12-10 | 2013-12-10 | Microwave-induced detection method and device used for safety protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664509.1A CN104700543B (en) | 2013-12-10 | 2013-12-10 | Microwave-induced detection method and device used for safety protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104700543A CN104700543A (en) | 2015-06-10 |
| CN104700543B true CN104700543B (en) | 2017-05-17 |
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| CN105046860B (en) * | 2015-09-14 | 2018-04-13 | 北京世纪之星应用技术研究中心 | A kind of intruder detection system and method using light wave Doppler effect |
| CN105118208A (en) * | 2015-09-22 | 2015-12-02 | 深圳Tcl数字技术有限公司 | Display device and antitheft alarm realization method thereof |
| CN106251536A (en) * | 2016-08-23 | 2016-12-21 | 高杰 | A kind of miniature intrusion detection power-supply system and detection method |
| CN106707244B (en) * | 2017-01-09 | 2019-03-29 | 深圳迈睿智能科技有限公司 | A kind of detection method that subregion is microwave induced and microwave sensor |
| CN107680314A (en) * | 2017-09-18 | 2018-02-09 | 广东美的制冷设备有限公司 | Security-protecting and monitoring method, electronic equipment and computer-readable recording medium |
| CN110333541A (en) * | 2019-07-09 | 2019-10-15 | 中科传启（苏州）科技有限公司 | A kind of life body detecting method, equipment and automobile data recorder |
| CN112985508A (en) * | 2021-03-16 | 2021-06-18 | 四川通信科研规划设计有限责任公司 | Coding and communication method for multifunctional sensor output |
| CN112907869B (en) * | 2021-03-17 | 2023-03-21 | 四川通信科研规划设计有限责任公司 | Intrusion detection system based on multiple sensing technologies |
| CN113625348A (en) * | 2021-06-22 | 2021-11-09 | 惠州市元盛科技有限公司 | Method for judging approach or departure of human body |
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