CN104700543A - Microwave-induced detection method and device used for safety protection - Google Patents
Microwave-induced detection method and device used for safety protection Download PDFInfo
- Publication number
- CN104700543A CN104700543A CN201310664509.1A CN201310664509A CN104700543A CN 104700543 A CN104700543 A CN 104700543A CN 201310664509 A CN201310664509 A CN 201310664509A CN 104700543 A CN104700543 A CN 104700543A
- Authority
- CN
- China
- Prior art keywords
- microwave
- freuqncy signal
- signal
- frequency
- value
- 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.)
- Granted
Links
Classifications
-
- 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, relate to a kind of microwave induced detection method for security protection and device.
Background technology
Along with the scale of microwave semiconductor technology is applied; the physics realization of microwave technology is not only very simple, cheap; and volume is very little; therefore at safety-security area; Doppler's microwave remote sensor is widely used in market; the weatherability that its initiative Detection Techniques avoid infrared probe is poor; there is blind area apart from the shortcoming such as near; and due in microwave remote sensor output signal than infrared containing more speed, the information such as intensity are convenient to developer on software, are done the anti-interference and anti-ability failed to report that more process improves alarm.The major defect of microwave intrusion detectors is that installation requirement is higher, if Rig up error, microwave signal will penetrate dress and is provided with the wall of window and causes reporting by mistake frequently, as leaf, sand and dust, rain, snow and toy etc., cannot differentiate effective intrusion behavior of the mankind.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect that prior art microwave induced detector rate of false alarm is too high, provides 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 sniffer that can differentiate the effective intrusion behavior of the mankind.
The technical solution adopted for the present invention to solve the technical problems is, construct a kind of microwave induced detection method for security protection, whether region of deploying troops on garrison duty exists intrusion behavior and makes corresponding alarm, and this microwave induced detection method comprises the following steps to utilize microwave induced sniffer to judge:
S1: use doppler transducer (1) real-time detection to deploy troops on garrison duty region;
S2: with or without moving object in region of deploying troops on garrison duty described in judgement, if having, enter step S3, otherwise return step S1;
S3: judge whether described moving object exists intrusion behavior, if then enter step S4, otherwise return step S1;
S4: triggered alarm (4), makes described alarm (4) give the alarm;
S5: judge whether invader leaves, if then enter step S6, otherwise return step S4;
S6: judge that whether the action left is effective, if then enter step S7, otherwise return step S4;
S7: close alarm (4), return step S1.
Described step S1 comprises following operation: use described doppler transducer (1) to described field emission pulsed microwave signals or the continuous wave microwave signal of deploying troops on garrison duty, the pulsed microwave signals simultaneously using described doppler transducer (1) to receive to be returned by described reflections off objects of deploying troops on garrison duty in region or continuous wave microwave signal.
Described step S2 comprises following operation: use described doppler transducer (1) with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and uses intelligent control module (3) to record the crest value A of described intermediate-freuqncy signal, by described crest value A and predetermined primary peak threshold value A
1relatively, if A is greater than A
1, then enter step S3, otherwise return step S1.
Described step S3 comprises following operation: use described doppler transducer (1) with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and use described intelligent control module (3) to record the crest value A of described intermediate-freuqncy signal, simultaneously, according to time sequencing, described intermediate-freuqncy signal is divided into groups, and calculate the mean value often organizing intermediate-freuqncy signal crest value, if continue to detect the intermediate-freuqncy signal crest value being greater than described primary peak threshold value within the first predetermined time delay, and average frequency value is in interval [f
1, f
2] in, and the mean value of grouping intermediate-freuqncy signal crest value presents lasting ascendant trend, then judge that described moving object exists intrusion behavior, enter step S4, otherwise return step S1.
Described step S5 comprises following operation: use described doppler transducer (1) with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and records the crest value A of described intermediate-freuqncy signal, by described crest value A and predetermined secondary peak threshold value A
2relatively, if A is less than A
2, and average frequency value is in interval [f
1, f
2] in, then enter step S6, otherwise return step S4.
Described step S6 comprises following operation: use described doppler transducer (1) with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and use the crest value A of intermediate-freuqncy signal described in described intelligent control module record, simultaneously, according to time sequencing, described intermediate-freuqncy signal is divided into groups, and calculate the mean value often organizing intermediate-freuqncy signal crest value, if continue to detect the intermediate-freuqncy signal crest value being less than described secondary peak threshold value within the second predetermined time delay, and the mean value of grouping intermediate-freuqncy signal crest value presents continuous decrease trend, then enter step S7, otherwise return step S4.
The present invention also provides a kind of microwave induced sniffer for security protection, and for intelligent detecting and the warning in safety guard field, this microwave induced sniffer comprises:
For sending the doppler transducer (1) of detectable signal when deploying troops on garrison duty and detecting moving target in region;
For receiving the receiver module (2) of doppler transducer (1) detectable signal;
The intelligent control module (3) whether region of deploying troops on garrison duty meets alert if is differentiated for interval residing for intermediate-freuqncy signal amplitude size, variation tendency and described IF signal frequency mean value; And
The alarm (4) of alerting signal is sent when region exists intrusion behavior for deploying troops on garrison duty described in intelligent control module (3) judgement.
Described microwave induced sniffer also comprises and being connected with described intelligent control module (3), controls and the remote transmission module (5) of reporting to the police for realizing Terminal Server Client.
Described microwave induced sniffer also comprises the expanded function interface (6) be connected with described intelligent control module (3), and personal authentication's unit (61), image unit (62) and the storage unit (63) to be connected separably with described expanded function interface (6).
The quantity of described doppler transducer (1) is multiple, and has different detection angles respectively.
The present invention, by introducing the method for anti-tampering judgement link for microwave sensor detector, avoids the frequent wrong report that non-human effective intrusion behavior causes, improves the reliability of microwave sensor detector; Meanwhile, because improvements over the prior art of the present invention only by program is write single-chip microcomputer to realize, without the need to additionally adding hardware device, can avoid integrated other types sensing technology, as three mirror detections the complicacy brought, reduce installation cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the hardware block diagram of the present invention's microwave induced sniffer first embodiment;
Fig. 2 is the workflow diagram of the microwave induced detection method embodiment of the present invention;
Fig. 3 A is that the present invention's microwave induced sniffer first embodiment detects in the scope of deploying troops on garrison duty the probe signal oscillogram be under complete stationary state;
Fig. 3 B is the probe signal oscillogram that the present invention's microwave induced sniffer first embodiment detects in the scope of deploying troops on garrison duty when having people to move;
Fig. 3 C is the probe signal oscillogram that the present invention's microwave induced sniffer first embodiment detects when people in the scope of deploying troops on garrison duty becomes motionless from motion;
Fig. 3 D is that the present invention's microwave induced sniffer first embodiment detects in the scope of deploying troops on garrison duty the probe signal oscillogram having fine motion;
Fig. 3 E is the probe signal oscillogram of the present invention's microwave induced sniffer first embodiment people detected in the scope of deploying troops on garrison duty when leaving investigative range;
Fig. 4 is the hardware block diagram of the present invention's microwave induced sniffer second embodiment;
Fig. 5 is the hardware block diagram of the microwave induced sniffer of the present invention the 3rd embodiment;
Fig. 6 is the scheme of installation of the microwave induced sniffer of the present invention the 4th embodiment.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
Fig. 1 is the hardware block diagram of the present invention's microwave induced sniffer first embodiment.Shown in Figure 1, microwave induced sniffer comprises the doppler transducer 1 be electrically connected successively, receiver module 2, intelligent control module 3 and alarm 4, described doppler transducer 1 comprises the oscillator 11 producing microwave signal, the antenna 12 of microwave signal is sent and receives in certain region, the receiver 13 of the microwave signal that receiving antenna 12 receives, comparison oscillator 11 sends the frequency mixer 14 of signal frequency and receiver 13 Received signal strength frequency, the low-pass filter 15 of filter high-frequency clutter, amplify the operational amplifier 16 of intermediate-freuqncy signal and send the signal generator 17 of alerting signal.The input end of antenna 12 is connected with receiver 13 with oscillator 11 respectively with output terminal, oscillator 11 is connected with the input end of frequency mixer 14 respectively with the output terminal of receiver 13, the output terminal of frequency mixer 14 is connected with the input end of signal generator 17 through low-pass filter 15, operational amplifier 16 successively, and the output terminal of signal generator 17 sends alarm command signal to receiver module 2.Based on said structure, oscillator 11 produces detection microwave signal, described microwave signal can be continuous wave microwave signal, also can be pulsed microwave signals, launched in region of deploying troops on garrison duty by antenna 12, microwave can reflect after running into object, the reflection wave input mixer 14 that antenna 12 receives by receiver 13, the original transmitted signal of the reflection wave signal of acceptance and oscillator 11 carries out mixing the frequency-splitting of calculating original signal with Received signal strength by frequency mixer 14, after noise signal in mixed recharge signal is filtered by frequency device 15, by operational amplifier 16, frequency-splitting is amplified, judge that whether transmission frequency is identical with receive frequency, thus judge whether have moving object in car, further, the present invention adopts simultaneously and differentiates in region of deploying troops on garrison duty whether there is moving object according to intermediate-freuqncy signal amplitude, and whether moving object has intrusion behavior, below describes concrete signal process and the detection method of the microwave induced sniffer of the present invention in detail.
Fig. 2 is the workflow diagram of the microwave induced detection method embodiment of the present invention.Comprise the following steps:
S1. initialization is carried out to the single-chip microcomputer in intelligent control module 3, then power supply is provided to doppler transducer 1, doppler transducer 1 enters duty, and to deploying troops on garrison duty, field emission pulsed microwave signals or continuous wave microwave signal also receive this pulsed microwave signals or continuous wave microwave signal of being reflected by detecting object;
S2. to deploy troops on garrison duty in region with or without moving object described in judging, if having, enter step S3, otherwise return step S1; Described doppler transducer 1 is with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and records the crest value A of described intermediate-freuqncy signal, by described crest value A and predetermined primary peak threshold value A
1relatively, if A is greater than A
1, then enter step S3, otherwise return step S1, in the present embodiment, setting A
1for 2V; In general, maintain in noise range without intermediate-freuqncy signal during moving object within the scope of probe detection, when there being object of which movement, crest value can according to moving object from probe distance and motion amplitude change and constantly convert, under normal circumstances moving object from probe more close to crest value larger, object of which movement must faster frequency higher.Originally can set the primary peak threshold value A that is greater than noise range
1, be greater than described primary peak threshold value A once detect
1crest value, then judge deploy troops on garrison duty region pre-set radius in start to occur moving object;
S3. carry out anti-tampering judgement, namely whether described moving object exists intrusion behavior, if then enter step S4, otherwise returns step S1; Described doppler transducer 1 is with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and record the crest value A of described intermediate-freuqncy signal, simultaneously, according to time sequencing, described intermediate-freuqncy signal is divided into groups, and calculate the mean value often organizing intermediate-freuqncy signal crest value, if continue to detect the intermediate-freuqncy signal crest value being greater than predetermined primary peak threshold value in the first predetermined time delay, and average frequency value is at interval [f
1, f
2], and the mean value of grouping intermediate-freuqncy signal crest value presents lasting ascendant trend, then there is intrusion behavior in described moving object, enters step S4, otherwise return step S1.The translational speed of the mankind is confined to a specific interval usually, can obviously distinguish non-human activity like this, as insect flight or the shake of curtain.According to the definition of Doppler effect, the business that receive frequency equals observer's translational speed and emissive source translational speed is multiplied by transmission frequency, therefore, can infer that the respective frequencies of mankind's activity is interval by the two relative velocity, after operational amplifier 16 amplifies, its average frequency value is about 10Hz-35Hz, gets rid of non-human activity possibility thus; Further, by analyzing, if its crest value is in rising trend grouping intermediate-freuqncy signal crest value, then judge that human body continues proximity detector, i.e. intrusion behavior, thus the wrong report eliminating that other behaviors of human body cause, greatly improve the present invention's reliability in actual applications;
S4. intelligent control module 3 gives the alarm instruction triggers alarm 4, and described alarm 4 is given the alarm;
S5. judge whether invader leaves, if then enter step S6, otherwise return step S4; Described doppler transducer 1 is with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and record the crest value A of described intermediate-freuqncy signal, described crest value A is compared with secondary peak threshold value A 2, if A is less than A2, and average frequency value is in interval [f1, f2], then enter step S6, otherwise return step S4, in the present embodiment, A2 is 1.5V; Adopt principle identical with S2, S3 at said process, in practical application, the ratio A1 that A2 value can be set is smaller, namely fence coverage is less than alarm range, programmed decision mobile object exits fence coverage, and when confirming that this mobile object is moving human body by receive frequency, enters step S6; Otherwise if occur multiple when being greater than the crest value of preset value (1.5V) or sampling crest value is less than 300 or packeting average value is not continuous decrease trend during analyzing, alarm 4 all can continue response.
S6. judge that whether the action left is effective, if then enter step S7, otherwise return step S4; Described doppler transducer 1 is with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and record the crest value A of described intermediate-freuqncy signal, simultaneously, according to time sequencing, described intermediate-freuqncy signal is divided into groups, and calculate the mean value often organizing intermediate-freuqncy signal crest value, if continue to detect the intermediate-freuqncy signal crest value being less than secondary peak threshold value in the second predetermined time delay, and the mean value of grouping intermediate-freuqncy signal crest value presents continuous decrease trend, then enter step S7, otherwise return step S4; By analyzing grouping intermediate-freuqncy signal crest value, if its crest value is on a declining curve, then judge that invader continues away from detector, i.e. effective departure motion, thus failing to report of eliminating that the invalid departure motion of invader causes, as repeatedly turned back in the scope of deploying troops on garrison duty, otherwise, if occur multiple when being greater than the crest value of preset value (1.5V) or sampling crest value is less than 300 or packeting average value is not continuous decrease trend during analyzing, alarm 4 all can continue response;
S7. close alarm 4, return step S1.
In said method flow process, predetermined crest threshold value A 1 and A2 can be adjusted according to actual needs, thus change radius of deploying troops on garrison duty, make it adjustable in 0.3-18 rice; On the other hand, pulsed microwave signals or continuous wave microwave signal can be selected to the monitoring in region of deploying troops on garrison duty, and according to security protection demand sampling rate adjusting, reach the object reducing power consumption.
Here it should be noted that, the first predetermined time delay in the present embodiment is 1s, and the frequency range of the intermediate-freuqncy signal of different model doppler transducer is not identical yet, the doppler transducer of such as 2.4GHz, the frequency of the intermediate-freuqncy signal that corresponding human motion produces is 1Hz-8Hz; The doppler transducer of 5.8GHz, the frequency range of the intermediate-freuqncy signal that corresponding human motion produces is 5.5Hz-20Hz; The doppler transducer of 24GHz, the frequency range of the intermediate-freuqncy signal that corresponding human motion produces is 15Hz-80Hz; Adopt 10.525GHz doppler transducer in the present embodiment, the frequency of the intermediate-freuqncy signal of the human motion generation of its correspondence is 10Hz-35Hz, that is, in the present embodiment, if sustainable existence range value is greater than predetermined primary peak threshold value A within this period
1, and the microwave signal of frequency again between 10Hz-35Hz, then illustrate that above-mentioned moving object is effective physical activity, same does identical human motion judgement also in protection scope of the present invention with the microwave Doppler transducer of other corresponding band.
Fig. 3 A is that the present invention's microwave induced sniffer first embodiment detects in the scope of deploying troops on garrison duty the probe signal oscillogram be under complete stationary state.When do not have moving object close to time, the intermediate-freuqncy signal of described oscillogram maintains in noise range, namely pops one's head in and does not produce detectable signal, and microwave induced device remains static.
Fig. 3 B is the probe signal oscillogram that the present invention's microwave induced sniffer first embodiment detects in the scope of deploying troops on garrison duty when having people to move.Intermediate-freuqncy signal fluctuation amplitude through frequency-conversion processing excess noise scope far away, thus make probe produce detectable signal, the further action of triggering following module.
Fig. 3 C is the probe signal oscillogram that the present invention's microwave induced sniffer first embodiment detects when people in the scope of deploying troops on garrison duty becomes motionless from motion.In oscillograph, the phenomenon being reduced the corresponding fluctuation detecting signal amplitude reduction caused by people's movement velocity can be observed significantly, thus prove that the present invention has and can effectively distinguish the ability that whether there is mobile object in region of deploying troops on garrison duty.
Fig. 3 D is that the present invention's microwave induced sniffer first embodiment detects in the scope of deploying troops on garrison duty the probe signal oscillogram having fine motion.Described fine motion, the tiny environmental change mainly caused by non-human referred in the present invention, as the swing of leaf, flickering of curtain, because its movement velocity respective frequencies is not in investigative range, therefore its signal fluctuation amplitude is much smaller than the probe signal fluctuation caused by mankind's activity, and therefore the method effectively can identify mankind's activity and non-human interfering activity, thus reduces rate of false alarm.
Fig. 3 E is the probe signal oscillogram of the present invention's microwave induced sniffer first embodiment people detected in the scope of deploying troops on garrison duty when leaving investigative range.Although moving object keeps certain movement velocity, due to the distance between doppler transducer and moving object, relation inversely proportional with the resonance amplitude of probe signal, the detectable signal amplitude therefore oscillograph shown is on a declining curve.In conjunction with the analysis to difference frequency signal, the spatial movement trend of mobile object effectively can be judged.
Fig. 4 is the hardware block diagram of the present invention's microwave induced sniffer second embodiment, the module structure composed of this second embodiment is identical with the first embodiment, essential difference is new Remote transport module 5 and is electrically connected with intelligent control module 3, this remote transmission module 5 can adopt mode that is wired or wireless transmission, sent the switch order of warning system by remote client terminal, and alerting signal is passed to client in real time.Described remote transmission module 5 can adopt the communication modules such as TCP/IP, 3G, Wi-Fi, GSM, GPRS, CDMA of the prior art, communication mode is optional, described remote client terminal comprises smart mobile phone, desktop computer, notebook computer, panel computer etc., only require and specific client application is installed, without the need to additionally adding corresponding hardware device, compatibility strengthens greatly, easy to install.
Fig. 5 is the hardware block diagram of the microwave induced sniffer of the present invention the 3rd embodiment, 3rd embodiment is modified on the basis of the second embodiment, add Function Extension interface 6, and be attached thereto the personal authentication's unit 61, image unit 62 and the storage unit 63 that connect.Function Extension interface 6 be not limited only to connect above-mentioned three functional modules, also can according to particular user need increase function.Personal authentication's unit 61 comprises finger print identifying, eyeball certification, sound authentication, cipher authentication etc., in order to the wrong report action removing Lawful access caused by person; Image unit 62 is for when alert trigger, or moving target enter region of deploying troops on garrison duty after lock onto target take it dynamically or static image, described image pickup unit can adopt charge coupled cell (Charge Coupled device, or the networked control product such as IPCamera module CCD).Storage unit 63 belongs to SD storage card (Secure Digital Memory Card), multimedia card (Multimedia Card, MMC), XD image card (Extreme Digital-Picture Card) and CF card (Compact Flash Card, CF card) etc. any one in memory device, also can be stored in the high in the clouds platform of internet.After described shooting unit is taken moving target, dynamic or static image are stored among storage unit 63, for judicial evidence collection provides admissible evidence in the future, or dynamic or static image are sent to client by remote transmission unit, determine whether start and close warning device by client according to actual conditions.
Fig. 6 is the scheme of installation of the microwave induced sniffer of the present invention the 4th embodiment.Because the antenna of doppler transducer in apparatus of the present invention is that tool is directive, its adjustable detection subtended angle is 0 ° ~ 140 °, therefore specific security application scenario is inadequate, such as, a room simultaneously with door and window, itself and window are arranged in the different angles in room, and each door and window may become the approach that invader enters region of deploying troops on garrison duty.For this reason, multiple doppler transducer can be formed a safety-protection system, each probe monitors certain radius distance in certain direction or angle, forms a stereoscopic protective system with this.For the moving object similar with human motion speed, domestic pets dog as larger in volume, cannot be judged by the anti-tampering program of the inventive method, therefore, height probe being placed in 1.5m can be considered when mounted, above-mentioned non-effective physical activity is avoided with this, or the wrong report that skeletal immature children causes.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (10)
1., for a microwave induced detection method for security protection, whether region of deploying troops on garrison duty exists intrusion behavior and makes corresponding alarm, and it is characterized in that, described microwave induced detection method comprises the following steps to utilize microwave induced sniffer to judge:
S1: use doppler transducer (1) real-time detection to deploy troops on garrison duty region;
S2: with or without moving object in region of deploying troops on garrison duty described in judgement, if having, enter step S3, otherwise return step S1;
S3: judge whether described moving object exists intrusion behavior, if then enter step S4, otherwise return step S1;
S4: triggered alarm (4), makes described alarm (4) give the alarm;
S5: judge whether invader leaves, if then enter step S6, otherwise return step S4;
S6: judge that whether the action left is effective, if then enter step S7, otherwise return step S4;
S7: close alarm (4), return step S1.
2. method according to claim 1, it is characterized in that, described step S1 comprises following operation: use described doppler transducer (1) to described field emission pulsed microwave signals or the continuous wave microwave signal of deploying troops on garrison duty, the pulsed microwave signals simultaneously using described doppler transducer (1) to receive to be returned by described reflections off objects of deploying troops on garrison duty in region or continuous wave microwave signal.
3. method according to claim 1, is characterized in that, described step S2 comprises following operation: use described doppler transducer (1) with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and uses intelligent control module (3) to record the crest value A of described intermediate-freuqncy signal, by described crest value A and predetermined primary peak threshold value A
1relatively, if A is greater than A
1, then enter step S3, otherwise return step S1.
4. method according to claim 1, is characterized in that, described step S3 comprises following operation: use described doppler transducer (1) with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and use described intelligent control module (3) to record the crest value A of described intermediate-freuqncy signal, simultaneously, according to time sequencing, described intermediate-freuqncy signal is divided into groups, and calculate the mean value often organizing intermediate-freuqncy signal crest value, if continue to detect the intermediate-freuqncy signal crest value being greater than described primary peak threshold value within the first predetermined time delay, and average frequency value is in interval [f
1, f
2] in, and the mean value of grouping intermediate-freuqncy signal crest value presents lasting ascendant trend, then judge that described moving object exists intrusion behavior, enter step S4, otherwise return step S1.
5. method according to claim 1, is characterized in that, described step S5 comprises following operation: use described doppler transducer (1) with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and records the crest value A of described intermediate-freuqncy signal, by described crest value A and predetermined secondary peak threshold value A
2relatively, if A is less than A
2, and average frequency value is in interval [f
1, f
2] in, then enter step S6, otherwise return step S4.
6. method according to claim 1, is characterized in that, described step S6 comprises following operation: use described doppler transducer (1) with predetermined sample frequency f
sintermediate-freuqncy signal through frequency-conversion processing is sampled, and use the crest value A of intermediate-freuqncy signal described in described intelligent control module record, simultaneously, according to time sequencing, described intermediate-freuqncy signal is divided into groups, and calculate the mean value often organizing intermediate-freuqncy signal crest value, if continue to detect the intermediate-freuqncy signal crest value being less than described secondary peak threshold value within the second predetermined time delay, and the mean value of grouping intermediate-freuqncy signal crest value presents continuous decrease trend, then enter step S7, otherwise return step S4.
7. a microwave induced sniffer, for intelligent detecting and the warning in safety guard field, is characterized in that, this microwave induced sniffer comprises:
For sending the doppler transducer (1) of detectable signal when deploying troops on garrison duty and detecting moving target in region;
For receiving the receiver module (2) of doppler transducer (1) detectable signal;
The intelligent control module (3) whether region of deploying troops on garrison duty meets alert if is differentiated for interval residing for intermediate-freuqncy signal amplitude size, variation tendency and described IF signal frequency mean value; And
The alarm (4) of alerting signal is sent when region exists intrusion behavior for deploying troops on garrison duty described in intelligent control module (3) judgement.
8. microwave induced sniffer according to claim 7, is characterized in that, described microwave induced sniffer also comprises and being connected with described intelligent control module (3), controls and the remote transmission module (5) of reporting to the police for realizing Terminal Server Client.
9. microwave induced sniffer according to claim 8, it is characterized in that, described microwave induced sniffer also comprises the expanded function interface (6) be connected with described intelligent control module (3), and personal authentication's unit (61), image unit (62) and the storage unit (63) to be connected separably with described expanded function interface (6).
10. microwave induced sniffer according to claim 7, is characterized in that, the quantity of described doppler transducer (1) is multiple, and has different detection angles respectively.
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 true CN104700543A (en) | 2015-06-10 |
| CN104700543B CN104700543B (en) | 2017-05-17 |
Family
ID=53347622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310664509.1A Active CN104700543B (en) | 2013-12-10 | 2013-12-10 | Microwave-induced detection method and device used for safety protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104700543B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105046860A (en) * | 2015-09-14 | 2015-11-11 | 北京世纪之星应用技术研究中心 | Intrusion detection system and method using Doppler effect of light waves |
| 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 |
| CN106707244A (en) * | 2017-01-09 | 2017-05-24 | 深圳迈睿智能科技有限公司 | Regional microwave induction detection method and microwave inductor |
| 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 |
| WO2021003841A1 (en) * | 2019-07-09 | 2021-01-14 | 中科传启（苏州）科技有限公司 | Living body detection method and device, and driving recorder |
| CN112907869A (en) * | 2021-03-17 | 2021-06-04 | 四川通信科研规划设计有限责任公司 | Intrusion detection system based on multiple sensing technologies |
| 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 |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079334U (en) * | 1990-09-24 | 1991-06-19 | 遂宁市无线电一厂 | Microwave radar alarming device |
| CN2269614Y (en) * | 1996-07-25 | 1997-12-03 | 长沙佳乐电子公司 | Radar type alarm for invading detection |
| JP2003101997A (en) * | 2001-09-20 | 2003-04-04 | Taiheiyo Boeki Kk | Automatic sensitivity switching device for detector |
| CN201352377Y (en) * | 2008-12-23 | 2009-11-25 | 重庆工商大学 | Ultrasonic sensor monitoring alarm and computer shooting interface device |
| CN102289906A (en) * | 2011-06-09 | 2011-12-21 | 无锡国科微纳传感网科技有限公司 | Enclosure intrusion detection method, device and system |
| CN103337131A (en) * | 2013-07-25 | 2013-10-02 | 国家电网公司 | Intelligent warning device |
-
2013
- 2013-12-10 CN CN201310664509.1A patent/CN104700543B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079334U (en) * | 1990-09-24 | 1991-06-19 | 遂宁市无线电一厂 | Microwave radar alarming device |
| CN2269614Y (en) * | 1996-07-25 | 1997-12-03 | 长沙佳乐电子公司 | Radar type alarm for invading detection |
| JP2003101997A (en) * | 2001-09-20 | 2003-04-04 | Taiheiyo Boeki Kk | Automatic sensitivity switching device for detector |
| CN201352377Y (en) * | 2008-12-23 | 2009-11-25 | 重庆工商大学 | Ultrasonic sensor monitoring alarm and computer shooting interface device |
| CN102289906A (en) * | 2011-06-09 | 2011-12-21 | 无锡国科微纳传感网科技有限公司 | Enclosure intrusion detection method, device and system |
| CN103337131A (en) * | 2013-07-25 | 2013-10-02 | 国家电网公司 | Intelligent warning device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105046860A (en) * | 2015-09-14 | 2015-11-11 | 北京世纪之星应用技术研究中心 | Intrusion detection system and method using Doppler effect of light waves |
| 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 |
| CN106707244A (en) * | 2017-01-09 | 2017-05-24 | 深圳迈睿智能科技有限公司 | Regional microwave induction detection method and microwave inductor |
| 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 |
| WO2021003841A1 (en) * | 2019-07-09 | 2021-01-14 | 中科传启（苏州）科技有限公司 | Living body detection method and device, and driving 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 |
| CN112907869A (en) * | 2021-03-17 | 2021-06-04 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104700543B (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104700543B (en) | Microwave-induced detection method and device used for safety protection | |
| AU2022200102B2 (en) | Machine learning motion sensing with auxiliary sensors | |
| CN203773681U (en) | Power distribution room security and protection system | |
| CN202221614U (en) | Home security system | |
| CN104309577B (en) | A kind of vehicle intelligent senses anti-infringement warning system | |
| CN106646457A (en) | Person behavior detection method and device based on microwaves | |
| WO2007020763A1 (en) | Computer implemented method for identifying a moving object by using a statistical classifier | |
| US8019549B2 (en) | Event-based power management for seismic sensors | |
| CN110341623A (en) | A kind of car door anti-collision early warning system and method for early warning | |
| CN112907869B (en) | Intrusion detection system based on multiple sensing technologies | |
| CN103513241A (en) | Moving object detecting device based on microwave transducer and ultrasonic transducer | |
| WO2015085486A1 (en) | Microwave inductive detection method and device for security protection | |
| CN202230566U (en) | Intelligent human body invasion detector capable of analyzing | |
| CN115052338A (en) | Intelligent household home security system based on remote alarm | |
| Qiang | Engineering design of electronic fence system based on intelligent monitoring and wireless local area network | |
| CN206805735U (en) | Intelligent base and fire alarm installation | |
| CN106251536A (en) | A kind of miniature intrusion detection power-supply system and detection method | |
| KR20140034364A (en) | Human sensing security system using impulse uwb (ultra wide band) radar | |
| CN114280600A (en) | Anti-interference human body existence detection system and method | |
| CN108965828B (en) | Multifunctional wireless video monitoring system | |
| CN209525451U (en) | A kind of 77GHz millimeter wave gate cracking protection radar | |
| CN106864409A (en) | A kind of automotive theft proof system based on information fusion Yu radio sensing network | |
| CN111724555A (en) | Angle detection intelligent alarm device with dual-mode communication function | |
| CN109633571B (en) | 77GHz millimeter wave barrier gate smash-proof radar signal processing device | |
| CN117607861A (en) | Human body track tracking method based on intelligent door lock and related equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |