CN108449574A - A kind of security detection method and system based on microwave - Google Patents
A kind of security detection method and system based on microwave Download PDFInfo
- Publication number
- CN108449574A CN108449574A CN201810212118.9A CN201810212118A CN108449574A CN 108449574 A CN108449574 A CN 108449574A CN 201810212118 A CN201810212118 A CN 201810212118A CN 108449574 A CN108449574 A CN 108449574A
- Authority
- CN
- China
- Prior art keywords
- personal computer
- industrial personal
- microwave
- coordinate
- remote sensor
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
Abstract
The invention discloses a kind of security detection method and system based on microwave, the safety precaution monitoring system for taking microwave remote sensor and video camera to combine, the big region Multitarget Tracking of microwave remote sensor identifies target, the position of target is sent to industrial personal computer by microwave remote sensor, industrial personal computer is by coordinate by logical transition at the coordinate of the presetting bit in video camera, and the presetting bit is sent to video camera, to trigger Pan/Tilt/Zoom camera video recording and capture identification.For industrial personal computer by after the Data Matching of radar and video, internal logic determines whether suspicious object, if so, interlinked command control centre takes measures and continues monitor log to suspicious object.The system of the present invention contributes to guard's timely processing alert and improves work efficiency, and the safety in defence region is ensured with high-tech intelligence means.
Description
Technical field
The present invention relates to protection and monitor field, more particularly to a kind of security detection method and system based on microwave.
Background technology
Safety is one family and the basis that society depends on for existence and development, especially in the present of information technology fast development
It, crime gimmick more becomes to modernizing, and means are more hidden, reinforces the security and guard technology of modernization and just seems even more important.Safeguard management
Technology is exactly to come into being on this basis.It is electronic technology, computer technology, sensor technology and modern communication technology
The product that contour science and technology are combined.Monitoring safety-protection system and product be prevent and fight crime and disaster prevention accident hair
Raw sharp weapon are an important rings for the overall control of social public security, it will make us gradually take leave of Yishanmen to keep tie epoch of peace.It passes
Single security protection measure such as enclosure wall, anti-theft net etc. has been unable to meet the needs of modernization security protection in system meaning, if only passing through
Increase personnel reduce or even avoid the generation of accident, then largely increase operation cost.With high-tech hand
Section is increasingly taken seriously to monitor protection zone.Most of Safety defence detector is all to lean on single inspection currently on the market
The shortcomings of that there are system detectio rates is low for survey technology, system rate of false alarm is high, poor anti jamming capability.
The main method that existing safety-protection system is taken has infrared emission, vibration optical fiber, leaky cable, video monitoring, right
Penetrate type micro-wave detector etc..
The principle of infrared emission is to be done at focusing through LED infrared light emission diodes, then through optical mirror plane using infrared ray
Reason makes light reach great distances, is received by light-receiving device, alarm will be sent out when light is interdicted.The mode of infrared emission is pacified
Dress is more hidden, and target can unconsciously touch police.Defect is to encounter rainy day or greasy weather to influence to alarm.
The principle of vibration optical fiber is that emitting laser sends out direct current monochromatic optical wave, is formed by fiber coupler forward and reverse
Optical signal after optical fiber is interfered by external shock, causes the variation of phase of light wave, forms phase-modulation transducing signal, be sent to
Photodetector detects the light intensity variation of interference light signal, realizes alarm.Vibration optical fiber can be embedded in underground and also be laid in sky
In, it will not be influenced by any radiation, electromagnetic interference, to climbing, shearing the various vibrations frequency of the intrusion attempts such as fence generation
Rate is very sensitive.The disadvantage is that linked network is needed to install, None- identified target can not judge position, and false dismissal and false alarm rate are higher, take precautions against
Be limited in scope, strong wind heavy rain, be not intended to touching, flying bird stop falling when be easy to cause false alarm.
The principle of leaky cable is to be connected respectively at transmitter, receiver by two leaky cables, transmitter transmitting
High-frequency electromagnetic can leak out electric energy in VHF, the emitted cable of uhf band, and part energy, which is coupled to receiver, makes transceiver
Between form the stabilization electromagnetic exploration area of an ellipse, people destroys stable state and receives signal after entering changes triggering
Alarm.The detection mode high sensitivity, false dismissed rate is small, is a kind of hidden invisible detection means.The disadvantage is that raining is also easy to produce mistake
Report, it is weaker for target identification ability, the invasions such as aerial parabolic can not be detected and cause false dismissal, be also easy by electromagnetic radiation
With the interference of noise.
The video monitoring mode taken in area monitoring, can record a video to monitoring area, especially there is control holder
Video camera can accomplish that 360 ° of rotations, monitoring range are wide, visual strong.Major defect has operating personnel not see continuously for a long time
Examine monitor video, omission factor is high, can only a kind of passive monitor mode at last；It needs to transfer video recording afterwards, can not accomplish in real time
Detecting；It is affected by weather, light, image algorithm Reliability comparotive is low.
Existing correlation radar detection means are that one is established between a pair of sensors to there is a fixed width using action principle
Degree and the microwave wall of height can detect at once once there is object to pass through.The major defect of microwave opposite type sensor is cannot
Invasion point range information is provided, wave beam is more fat, and application range is restricted.It is big by earth's surface weeds, branch wobble effects, it needs
Periodic cleaning weeds, branch.
Invention content
The technical problem to be solved in the present invention is to provide a kind of security detection method and system based on microwave, helps to protect
It defends personnel's timely processing alert and improves work efficiency, the safety in defence region is ensured with high-tech intelligence means.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of security detection method based on microwave, includes the following steps：
S1：Using microwave remote sensor position as origin, using the vertical direction of radar antenna as Y-axis, horizontal direction X
Axis establishes coordinate system in the monitoring area of microwave remote sensor scanning covering；
S2：The video camera of full rotational angle is placed in the monitoring area；
S3：The monitoring area is divided into multiple array element regions, and determines that the center in each array element region is opposite
In the array element coordinate of the coordinate system；
S4：A presetting bit of video camera described in each array element coordinate matching；
S5：Within a scan period, the coordinate for detecting object is sent to industrial personal computer by the microwave remote sensor, with determination
Array element region where the detection object；
S6：Drive the presetting bit corresponding to the array element region in the Camera Positioning to S5；
S7：The video camera sends back the industrial personal computer by image is captured；
S8：The industrial personal computer tentatively judges whether the crawl image finds with the presence of the detection object if "Yes"
Suspicious object；If "No", decoy is fed back to the microwave remote sensor.
Preferably, after S8, if tentatively judging the detection object for suspicious object, the industrial personal computer is to the microwave
Sensor and the video camera send trace command, specifically include following steps：
S9a：Within the next scan period, according to the sequence of sweep time, the microwave remote sensor is by the detection
The coordinate of object is sent to the industrial personal computer successively, each array element region passed by with the determination detection object；
S10：The video camera is driven to position into S9 the presetting bit corresponding to each array element region successively；
S11：According to the sequence of sweep time, the coordinate of the detection object also is depicted as moving by the microwave remote sensor
Track, and it is sent to the industrial personal computer.
Preferably, after S8, if tentatively judging the detection object for suspicious object, the industrial personal computer is sending tracking
While instruction, will also it include the following steps：
S9b：The coordinate of the detection object and the crawl image are sent to command scheduling center by the industrial personal computer, and
Trigger alarm module.
Preferably, further comprising the steps of after S11：
S12：The motion track is sent to Dispatch and Command Center by the industrial personal computer, and triggers alarm module；
S13：Administrator finally judges whether the detection object is suspicious object, if "Yes", continue to execute it is described with
Track instructs；If "No", tracking is terminated.
According to another aspect of the present invention, the security protection detection system based on microwave that the invention also discloses a kind of, with micro-
Wave sensor position is origin, and using the vertical direction of radar antenna as Y-axis, horizontal direction is X-axis, is passed in the microwave
The monitoring area of sensor scanning covering establishes coordinate system, and the security protection detection system includes：
Microwave remote sensor for determining the coordinate for detecting object existing for the monitoring area, and is sent to industrial personal computer；
Industrial personal computer for the monitoring area to be divided into multiple array element regions, and determines each array element region
Array element coordinate of the center relative to the coordinate system, also by a presetting bit of each array element coordinate matching video camera；
Video camera, for carrying out cruise shooting according to the sequence of the presetting bit；
Wherein, the industrial personal computer determines the array element region where the detection object according to the coordinate of reception, to
It determines the corresponding presetting bit, then drives the Camera Positioning to the presetting bit, so that the video camera will grab
Image is taken to send back the industrial personal computer.
Preferably, in the case where the industrial personal computer tentatively judges the detection object for suspicious object, the industrial personal computer
Trace command is sent to the microwave remote sensor and the video camera.
Preferably, after multiple scan periods, according to the sequence of sweep time, the microwave remote sensor by it is described detection pair
The coordinate of elephant is depicted as motion track, and is sent to the industrial personal computer.
Preferably, further include the command scheduling center of industrial computer communication connection, be used to receive the coordinate, described
Image and the motion track are captured, is additionally operable to send to the industrial personal computer and continues trace command or termination trace command.
Preferably, voice alarm module is triggered in the command scheduling center in response to the information of the industrial personal computer.
Preferably, the microwave remote sensor is installed on the boundary of the monitoring area, and the video camera is installed on the prison
Control the center in region.
In the prior art, Microwave Detecting Technology detection principle is that transmitter emits electromagnetic wave through radio-frequency antenna, by target
The microwave signal received after reflection will produce small offset compared with the frequency of transmitting signal, to be obtained by signal processing
To useful target information.The detection to fixed target not only may be implemented in the technology, but also can be realized by algorithm process
Detection to moving-target, calculates the distance of target in microwave overlay area, azimuth, speed, and it is complete to provide target for size etc.
Location information and doppler information, realize the detection to moving target in region by these measurements.The disadvantage is that cannot picture
Video can intuitively see that the motion state of target and the judgement precision of target type are not very high like that.
Compared with prior art, the present invention proposes using microwave remote sensor and merges device and the inspection of multiple sensing datas
Survey method, to carrying out target positioning to the object entered in region in big regional extent, main technical problems to be solved have：
1, using the round-the-clock round-the-clock steady operation of microwave and multiple target tracking combination video visualization it the advantages of, carries
A kind of data fusion method is gone out, has solved the problems, such as that omission factor and rate of false alarm are high in traditional safety-protection system.
2, it is converted by coordinate, by the center point coordinate in coordinate matching to zonule different in two subsystems, solution
Certainly there is deviation in the same target location of two detection front-end detections, reduce the operand of computer, improve system
Efficiency.
3, solve the problems, such as in safety defense monitoring system multiple sensors cannot effective coordinated, propose efficient system dress
It sets and logical calculation method, improves system stability.
Description of the drawings
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is a kind of schematic diagram of the security protection detection system based on microwave of the present invention；
Fig. 2 is a kind of monitoring area figure of security detection method and system based on microwave of the present invention
Fig. 3 is continuously linear frequency-modulated wave schematic diagram；
Fig. 4 is the continuously linear frequency-modulated wave schematic diagram for increasing Doppler frequency shift；
Fig. 5 is a kind of preliminary flow chart of the security detection method based on microwave of the present invention；
Fig. 6 is the flow chart after Fig. 5 steps.
Meaning in Fig. 2 represented by each symbol is as follows：
1- maps；2- microwave remote sensors；3- video cameras.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.In addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Figure 1, the present invention is based on the security protection detection system of microwave, include mainly：Microwave remote sensor, video camera, work
Control machine and command scheduling center.The job specification of each device is described in detail below.
Microwave remote sensor realizes the communication and transmission with industrial personal computer using network interface, takes the mode of linear frequency modulation wave
Emit electromagnetic wave, receives echo-signal, filtered and Signal Pretreatment obtains useful signal, analyzes the information of target.It is micro-
Wave contains digital signal processing unit, which mainly follows circuit, voltage comparator, programmable amplifier to form by blocking.Blocking
Circuit is the AC compounent for obtaining signal, since the triode that the intermediate frequency amplified signal of microwave remote sensor output contains+2V is static
Dc point can be such that signal ends if not being isolated in subsequent processing, influence the further progress of work.
Voltage comparator uses voltage comparable chip LM393AP, the intermediate-freuqncy signal after blocking is buffered to be converted into the TTL of the 3.3V of standard
Level signal, the work simplification software by increasing hardware are handled.Gain-programmed amplifier adds operation by analog multiplexer
Amplifier forms, and changes the amplification factor of programmable amplifier according to the data of leading portion AD converter acquisition, to make signal
Amplitude is maintained between 2-3V as far as possible, realizes the unification of gamut, further increases the sampling precision of signal.In the present invention
System in, microwave remote sensor using MIMO radar transmitting terminal using multiple orthogonal signalling realize space universe
Covering receives all transmitting signals in each array element of receiving terminal and sorts to obtain multi-path echo by matched filtering group, to
It introduces far more than the observation channel of actual physics array element number and degree of freedom.The microwave remote sensor can simultaneously carry out space
Universe covers.According to above-mentioned job specification, microwave remote sensor can determine the coordinate of the existing detection object of the monitoring area,
And it is sent to industrial personal computer.
Video camera is connected with cradle head control machine, and connect and transmit signal with industrial personal computer cable, can set multiple preset
Position, and cruise according to presetting bit sequence.After video camera can receive the shooting instruction of industrial personal computer, figure is captured in specified presetting bit
Picture, and send back image processing unit.
In the present embodiment, as shown in Fig. 2, it is 90~120 ° that microwave remote sensor 2, which can detect angle of coverage, and half is detected
Minimum 400 meters of diameter.Video camera 3 selects Pan/Tilt/Zoom camera, can 360 ° of rotating monitoring surrounding areas with cradle head control.By microwave
Sensor 2 is installed on the boundary of monitoring area, and video camera 3 is installed on the center of monitoring area, and before two detections of acquisition
The latitude and longitude information at end.
Industrial personal computer is by groups such as geography information acquiring unit, logical unit, image processing unit, signaling control units
At.Industrial personal computer is connected with video camera and microwave remote sensor respectively.Industrial personal computer can give quick response to the data received, i.e.,
When output adjust, realize logic control.
As shown in Fig. 2, geography information acquiring unit can import the local map 1 of monitoring area, the positioning shooting on ground Fig. 1
The position of machine 3 and radar sensor 2, and monitoring boundary delimited on ground Fig. 1.Integral monitoring region is origin with microwave remote sensor 2
Rectangular coordinate system is established, using the vertical direction of radar antenna as Y-axis, the horizontal direction of radar antenna is X-axis.Assuming that the region
A length of A, width are the quadrangle of B.P*q array element region of self-defined division in region is p-1 tangent line, Y wherein in X-direction
It is q-1 tangent line in axis direction.The center point coordinate in each array element region, that is, array element coordinate, are set as video camera (also
Ball machine) presetting bit, and be stored in geography information acquiring unit.After microwave remote sensor 1 finds the coordinate of detection object,
The two-dimensional coordinate is sent to geography information acquiring unit.Geography information acquiring unit determines detection object institute according to this coordinate
Array element region, so that it is determined that corresponding presetting bit.
Signaling control unit connects video camera, and the presetting bit is gone to actuated camera.Video camera will capture image and send
To image processing unit.Based on the model library of all kinds of targets, image processing unit judges that the crawl image is using Processing Algorithm
It is no to there is detection object, and judge to detect the type of object, people, animal or other objects.
Logical unit uses 74LS00 NAND gate chips, when receiving the defeated of microwave remote sensor and image processing unit
When exit port exports high level signal simultaneously, quote with the presence of target.If target is not present, then it represents that microwave remote sensor is judged by accident,
It is sent to logical unit low level signal；If there are target, it is sent to logical unit high level signal.
Command scheduling center is connect with industrial personal computer by cable.When the target that command scheduling center receives industrial personal computer exists
After information, voice alarm module and digital display module are triggered.Audio alert is used for warning administrator's note that digital-scroll technique mould
Block is used for the type of display target existence position and target.Administrator determines whether suspicious object again according to video image, if
Be suspicious object then by key-press module be transmitted to industrial personal computer need to continue track；If be judged as be not suspicious object if by button mould
Block is transmitted to industrial personal computer without lasting tracking, then all clear, control holder continuation is monitored according to presetting bit.
Based on above-mentioned apparatus, as shown in figure 5, the present invention is based on the security detection method of microwave, include the following steps first：
S1：Using microwave remote sensor position as origin, using the vertical direction of radar antenna as Y-axis, horizontal direction X
Axis establishes coordinate system in the monitoring area of microwave remote sensor scanning covering；
S2：The video camera of full rotational angle is placed in the monitoring area；
S3：The monitoring area is divided into multiple array element regions, and determines that the center in each array element region is opposite
In the array element coordinate of the coordinate system；
S4：A presetting bit of video camera described in each array element coordinate matching；
S5：Within a scan period, the coordinate for detecting object is sent to industrial personal computer by the microwave remote sensor, with determination
Array element region where the detection object；
S6：Drive the presetting bit corresponding to the array element region in the Camera Positioning to S5；
S7：The video camera sends back the industrial personal computer by image is captured；
S8：The industrial personal computer tentatively judges whether the crawl image finds with the presence of the detection object if "Yes"
Suspicious object；If "No", decoy is fed back to the microwave remote sensor.
And as shown in fig. 6, after S8, if tentatively judging the detection object for suspicious object, the industrial personal computer is being sent out
While sending trace command, will also it include the following steps：
S9b：The coordinate of the detection object and the crawl image are sent to command scheduling center by the industrial personal computer, and
Trigger alarm module.
Meanwhile after S8, if tentatively judging the detection object for suspicious object, the industrial personal computer is passed to the microwave
Sensor and the video camera send trace command, specifically include following steps：
S9a：Within the next scan period, according to the sequence of sweep time, the microwave remote sensor is by the detection
The coordinate of object is sent to the industrial personal computer successively, each array element region passed by with the determination detection object；
S10：The video camera is driven to position into S9 the presetting bit corresponding to each array element region successively；
S11：According to the sequence of sweep time, the coordinate of the detection object also is depicted as moving by the microwave remote sensor
Track, and it is sent to the industrial personal computer.
S12：The motion track is sent to Dispatch and Command Center, and triggers alarm module；
S13：Administrator finally judges whether the detection object is suspicious object, if "Yes", continue to execute it is described with
Track instructs；If "No", tracking is terminated.
After the monitoring area of microwave remote sensor determines, need to carry out Background learning to the environment of monitoring area.This radar system
System uses CW with frequency modulation system, is modulated using symmetric triangular wave, and operation principle is as shown in figure 3, the frequency of transmitting signal is
Symmetric triangular wave is modulated, and transmitting signal amplitude is constant, and in a cycle T, the frequency of signal is：
Wherein：
f0For signal active centre frequency；
△ F are signal effective bandwidth；
For coefficient of frequency modulation；
T is triangle wave period；
For initial phase.
Therefore, in one cycle, emit frequency sweep section under the mountain of signal to be represented by：
Wherein：
A is signal amplitude (and indicating the energy value of echo).
Within the effective signal period, signal echo is：
Wherein：
R is the radial distance for detecting object, and c is the light velocity.
Then, in the useful signal periodWithIt is interior, by formula (4) and formula (2)
Instantaneous phase subtract each other, or the instantaneous phase of formula (3) and formula (1) is subtracted each other, transmitting signal and echo-signal can be obtained
It is mixed the instantaneous phase of the difference frequency signal of gained, is：
Then difference frequency signal frequency can be obtained to formula (7) derivation, is：
By formula (8) it is recognised that the distance and difference frequency signal frequency of target are directly proportional, as long as therefore measuring output intermediate frequency
The frequency of signal, so that it may to calculate the distance of target.Formula (7) and (8) are that the detection object to be detected is static situation.
If it is radial motions of the v along microwave remote sensor wave beam to detect object with speed, it will the echo of microwave remote sensor is made to increase
Doppler frequency shift fd.Doppler frequency shift makes the curve of frequency-time of echo be raised and lowered, poor so as to cause a part
Being increased on frequency reduces a Doppler frequency shift on a Doppler frequency shift or another part difference frequency.Fig. 4 shows increase
The continuously linear frequency-modulated wave schematic diagram of Doppler frequency shift.
If detecting object close to microwave remote sensor, the difference frequency within the frequency modulation period is：
Wherein：
For the difference frequency of upper frequency sweep section；
For the difference frequency of lower frequency sweep section.
The distance and velocity information for detecting object can be then calculated by formula (11) and formula (12)：
By formula (11) as long as it can be seen that measuring the average frequency of output difference frequency signal, you can obtain the distance of detection object.
If measuring the speed of detection object, the difference frequency signal of upper and lower frequency sweep section output must be measured respectively, as shown in formula (12).
It is derived according to ambiguity function, the distance resolution of triangle arm continuous wave is：
The velocity resolution of triangle arm continuous wave is：
According to the modulation system of above-mentioned microwave beam, microwave remote sensor after scanning, has obtained the radial direction of detection object
Speed, radial distance Dr further determine that target relative to the horizontal deflection angle α of radar and vertical by the echo-signal of wave beam
It is biased to angle, θ.The time for entering monitoring area according to detection object from 0~100 number, has target to leave monitoring area and discharges
Go out z values, after waiting for 100 units all assignment, assigns new IDz since minimum z values again.
By taking rectangular detection zone as shown in Figure 2 as an example, microwave remote sensor 2 is mounted on rectangular an apex and radar
Antenna plane is parallel with rectangular one side.Rectangular coordinate system is established by origin O of radar, the horizontal direction of radar antenna is X-axis,
The vertical direction of radar antenna is Y-axis.Then target is located at the coordinate value of X-direction and Y-direction in coordinate system and is respectively：
IDz_X=(Dr × sin θ) × sin α (15)
IDz_Y=(Dr × sin θ) × cos α (16)
Therefore, the position of target in a coordinate system be represented by (IDz_X, IDz_Y)=(Dr × sin θ × sin α,
Dradial×sinθ×cosα)。
Industrial personal computer needs a presetting bit of video camera described in each array element coordinate matching by monitoring area.Such as figure
Shown in 2, after known monitoring area and the installation site of microwave remote sensor 2, video camera 3 is installed on the monitoring area close to center
Position.First according to the latitude and longitude information of the two detection front end installation sites of radar and Pan/Tilt/Zoom camera, obtained in geography information
The background map of monitoring area is transferred in module, sets monitoring range.Assuming that a length of A in the region, width B, X-axis side in region
It is p-1 tangent line upwards, is q-1 tangent line in Y direction, then the region division goes out p*q array element, the first row since origin
First row is numbered array element as follows：
The array element number that m rows n-th arrange is Smn, then the center point coordinate of the array element be：
Wherein, ranging from 1~p of ranging from 1~q of n, m.
In the signal control module of industrial personal computer, the preset bit number and array element center point coordinate of Pan/Tilt/Zoom camera are carried out
Matching storage in the database, has p*q array element to set p*q presetting bit to Pan/Tilt/Zoom camera.Set array element centre coordinate
SmnAnd after the corresponding preset bit number Q in the center, all settings have been completed, and start to detect.
Position based on above-mentioned microwave remote sensor and video camera, after microwave remote sensor scanning to detection target, industrial personal computer
It is preliminary to judge whether detection target.As the coordinates of targets (ID detectedZ_ X, IDZ_ Y), it is known that length of side A and q value, by differing
FormulaFind out n values.Known length of side B and p value again, by inequality
M values are found out, show the target in SmnIn array element, so that it is determined that array element region.The signal control module of industrial personal computer parses SmnBattle array
Member corresponding preset bit number Q in Pan/Tilt/Zoom camera then sends IDz numbers and preset bit number Q to Pan/Tilt/Zoom camera, triggering
Pan/Tilt/Zoom camera is to the preset site video recording and captures.Video capture to image send image processing unit to, the unit pair
The image algorithm processing received is recognised that with the presence of target, and " array element S is exported if having targetmnThere is target "；If nothing
It is decoy that target, which then feeds back to radar, abandons tracking.
Industrial personal computer identifies array element S by data processingmnAfter there is target, while being sent to microwave remote sensor and PTZ refers to
Locking Target id z is enabled, and continues to track, target type is matched by image processing unit in the database, judges that target is
The mankind, animal or vehicle.
Radar tracks the target Continuous detected, exports coordinates of targets IDz (ID in real timeZ_ X, IDZ_ Y), the mesh at moment 1
Mark IDz coordinates are (IDZ_ X1, IDZ_ Y1), the Target id z coordinate at moment 2 is (IDZ_ X2, IDZ_ Y2), and so on, moment t
Target id z coordinate be (IDZ_ Xt, IDZ_Yt).The processing of microwave remote sensor internal data can restore target in a coordinate system
Running orbit, and export to industrial personal computer.
Target following track and target type are transmitted to command scheduling center by industrial personal computer, and triggering voice alarm module is reminded
Administrator note that show the real-time video transmitted by industrial personal computer and position in digital display module, administrator by it is very short when
Between determine whether suspicious object.Key-press module has multiple buttons, and alarm is eliminated when first button is for being not suspicious object,
Second button continues to track for target to be seen, and third is for determining that suspicious object is persistently tracked and transferred at personnel
Reason.If all clear, video camera can also be according to the presetting bit sequence cruise monitoring area that preliminary design is set, so that commander adjusts
It degree center can real-time observation area dynamic.
To sum up, when microwave remote sensor does not detect that target occurs, video camera can cruise the present invention by initial preset position
Video recording.After microwave remote sensor detects that target occurs, industrial personal computer transfers video camera and goes to presetting bit video recording.And industrial personal computer is sentenced
Whether disconnected is suspicious object in database.Detection to same coordinates of targets is carried out track line by microwave remote sensor, and output is real
When moving line provide that a kind of rate of false alarm is low, detection and analysis are quickly accurate while in conjunction with the visualization advantage of video camera
Really, intelligentized region security protection detection system.The present invention is scanned using the round-the-clock round-the-clock of radar and the advantage of video imaging, and
Shi Faxian, positioning, tracking target, can active probe, realize in security protection region people, animal, vehicle real time monitoring, early
It takes precautions against, preliminary judgement is made to dangerous situation, sends out early warning and warning message, the time is saved for operator on duty's responding.
Embodiments of the present invention are explained in detail above in association with attached drawing, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (10)
1. a kind of security detection method based on microwave, which is characterized in that include the following steps：
S1：Using microwave remote sensor position as origin, using the vertical direction of radar antenna as Y-axis, horizontal direction is X-axis,
Coordinate system is established in the monitoring area of microwave remote sensor scanning covering；
S2：The video camera of full rotational angle is placed in the monitoring area；
S3：The monitoring area is divided into multiple array element regions, and determines the center in each array element region relative to institute
State the array element coordinate of coordinate system；
S4：A presetting bit of video camera described in each array element coordinate matching；
S5：Within a scan period, the coordinate for detecting object is sent to industrial personal computer by the microwave remote sensor, described in determination
Detect the array element region where object；
S6：Drive the presetting bit corresponding to the array element region in the Camera Positioning to S5；
S7：The video camera sends back the industrial personal computer by image is captured；
S8：The industrial personal computer tentatively judges whether the crawl image finds suspicious with the presence of the detection object if "Yes"
Target；If "No", decoy is fed back to the microwave remote sensor.
2. a kind of security detection method based on microwave according to claim 1, which is characterized in that after S8, if tentatively
The detection object is judged for suspicious object, then the industrial personal computer sends tracking to the microwave remote sensor and the video camera and refers to
It enables, specifically includes following steps：
S9a：Within the next scan period, according to the sequence of sweep time, the microwave remote sensor is by the detection object
Coordinate be sent to the industrial personal computer successively, with determination each array element region for passing by of detection object；
S10：The video camera is driven to position into S9 the presetting bit corresponding to each array element region successively；
S11：According to the sequence of sweep time, the coordinate of the detection object is also depicted as moving rail by the microwave remote sensor
Mark, and it is sent to the industrial personal computer.
3. a kind of security detection method based on microwave according to claim 1, which is characterized in that after S8, if tentatively
The detection object is judged for suspicious object, then the industrial personal computer will also include the following steps while sending trace command：
S9b：The coordinate of the detection object and the crawl image are sent to command scheduling center by the industrial personal computer, and are triggered
Alarm module.
4. a kind of security detection method based on microwave according to claim 2, which is characterized in that after S11, further include
Following steps：
S12：The motion track is sent to Dispatch and Command Center by the industrial personal computer, and triggers alarm module；
S13：Administrator finally judges whether the detection object is suspicious object, if "Yes", continues to execute the tracking and refers to
It enables；If "No", tracking is terminated.
5. a kind of security protection detection system based on microwave, which is characterized in that using microwave remote sensor position as origin, with radar
The vertical direction of antenna is Y-axis, and horizontal direction is X-axis, establishes and sits in the monitoring area of microwave remote sensor scanning covering
Mark system, the security protection detection system include：
Microwave remote sensor for determining the coordinate for detecting object existing for the monitoring area, and is sent to industrial personal computer；
Industrial personal computer for the monitoring area to be divided into multiple array element regions, and determines the center in each array element region
Relative to the array element coordinate of the coordinate system, also by a presetting bit of each array element coordinate matching video camera；
Video camera, for carrying out cruise shooting according to the sequence of the presetting bit；
Wherein, the industrial personal computer determines the array element region where the detection object according to the coordinate of reception, so that it is determined that
Then the corresponding presetting bit drives the Camera Positioning to the presetting bit, so that the video camera schemes crawl
As sending back the industrial personal computer.
6. a kind of security protection detection system based on microwave according to claim 5, which is characterized in that at the beginning of the industrial personal computer
In the case that step judges the detection object for suspicious object, the industrial personal computer is sent out to the microwave remote sensor and the video camera
Send trace command.
7. a kind of security protection detection system based on microwave according to claim 6, which is characterized in that in multiple scan periods
Afterwards, according to the sequence of sweep time, the coordinate of the detection object is depicted as motion track by the microwave remote sensor, and is sent
To the industrial personal computer.
8. a kind of security protection detection system based on microwave according to claim 7, which is characterized in that further include the industry control
The command scheduling center of machine communication connection, is used to receive the coordinate, the crawl image and the motion track, also
Continue trace command or termination trace command for being sent to the industrial personal computer.
9. a kind of security protection detection system based on microwave according to claim 8, which is characterized in that in the command scheduling
The heart triggers voice alarm module in response to the information of the industrial personal computer.
10. a kind of security protection detection system based on microwave according to any one of claim 5-9, which is characterized in that institute
The boundary that microwave remote sensor is installed on the monitoring area is stated, the video camera is installed on the center of the monitoring area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212118.9A CN108449574A (en) | 2018-03-15 | 2018-03-15 | A kind of security detection method and system based on microwave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212118.9A CN108449574A (en) | 2018-03-15 | 2018-03-15 | A kind of security detection method and system based on microwave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108449574A true CN108449574A (en) | 2018-08-24 |
Family
ID=63195279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810212118.9A Withdrawn CN108449574A (en) | 2018-03-15 | 2018-03-15 | A kind of security detection method and system based on microwave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108449574A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118965A (en) * | 2019-04-01 | 2019-08-13 | 贵州航天电子科技有限公司 | A kind of radio is to lost motion target acquisition characteristic field trial device |
| CN110910519A (en) * | 2019-11-08 | 2020-03-24 | 北京万集科技股份有限公司 | Information acquisition method and device, free flow charging system and storage medium |
| CN111028287A (en) * | 2018-10-09 | 2020-04-17 | 杭州海康威视数字技术股份有限公司 | Method and device for determining transformation matrix of radar coordinates and camera coordinates |
| CN111025283A (en) * | 2018-10-09 | 2020-04-17 | 杭州海康威视数字技术股份有限公司 | Method and device for linking radar and dome camera |
| CN111246097A (en) * | 2020-01-19 | 2020-06-05 | 成都依能科技股份有限公司 | PTZ scanning path generation method based on graph perception |
| CN111294563A (en) * | 2020-02-24 | 2020-06-16 | 浙江大华技术股份有限公司 | Video monitoring method and device, storage medium and electronic device |
| CN111314657A (en) * | 2019-12-31 | 2020-06-19 | 安徽清新互联信息科技有限公司 | Image acquisition method and system based on cluster camera equipment |
| CN111899447A (en) * | 2019-05-06 | 2020-11-06 | 杭州海康威视数字技术股份有限公司 | Monitoring system and method |
| CN113382200A (en) * | 2020-03-10 | 2021-09-10 | 深圳富桂精密工业有限公司 | Camera layout method and device |
| CN116959028A (en) * | 2023-07-20 | 2023-10-27 | 山东产研鲲云人工智能研究院有限公司 | Method for supervising safety of high-altitude operation, inspection equipment and computing equipment |
-
2018
- 2018-03-15 CN CN201810212118.9A patent/CN108449574A/en not_active Withdrawn
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111028287A (en) * | 2018-10-09 | 2020-04-17 | 杭州海康威视数字技术股份有限公司 | Method and device for determining transformation matrix of radar coordinates and camera coordinates |
| CN111025283A (en) * | 2018-10-09 | 2020-04-17 | 杭州海康威视数字技术股份有限公司 | Method and device for linking radar and dome camera |
| CN111028287B (en) * | 2018-10-09 | 2023-10-20 | 杭州海康威视数字技术股份有限公司 | Method and device for determining a transformation matrix of radar coordinates and camera coordinates |
| CN110118965A (en) * | 2019-04-01 | 2019-08-13 | 贵州航天电子科技有限公司 | A kind of radio is to lost motion target acquisition characteristic field trial device |
| CN111899447A (en) * | 2019-05-06 | 2020-11-06 | 杭州海康威视数字技术股份有限公司 | Monitoring system and method |
| CN110910519A (en) * | 2019-11-08 | 2020-03-24 | 北京万集科技股份有限公司 | Information acquisition method and device, free flow charging system and storage medium |
| CN110910519B (en) * | 2019-11-08 | 2022-05-17 | 北京万集科技股份有限公司 | Information acquisition method and device, free flow charging system and storage medium |
| CN111314657B (en) * | 2019-12-31 | 2021-05-14 | 安徽清新互联信息科技有限公司 | Image acquisition method and system based on cluster camera equipment |
| CN111314657A (en) * | 2019-12-31 | 2020-06-19 | 安徽清新互联信息科技有限公司 | Image acquisition method and system based on cluster camera equipment |
| CN111246097B (en) * | 2020-01-19 | 2021-06-04 | 成都依能科技股份有限公司 | PTZ scanning path generation method based on graph perception |
| CN111246097A (en) * | 2020-01-19 | 2020-06-05 | 成都依能科技股份有限公司 | PTZ scanning path generation method based on graph perception |
| CN111294563B (en) * | 2020-02-24 | 2021-06-18 | 浙江大华技术股份有限公司 | Video monitoring method and device, storage medium and electronic device |
| CN111294563A (en) * | 2020-02-24 | 2020-06-16 | 浙江大华技术股份有限公司 | Video monitoring method and device, storage medium and electronic device |
| CN113382200A (en) * | 2020-03-10 | 2021-09-10 | 深圳富桂精密工业有限公司 | Camera layout method and device |
| CN116959028A (en) * | 2023-07-20 | 2023-10-27 | 山东产研鲲云人工智能研究院有限公司 | Method for supervising safety of high-altitude operation, inspection equipment and computing equipment |
| CN116959028B (en) * | 2023-07-20 | 2024-03-01 | 山东产研鲲云人工智能研究院有限公司 | Method for supervising safety of high-altitude operation, inspection equipment and computing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108449574A (en) | A kind of security detection method and system based on microwave | |
| CN105842683B (en) | A kind of unmanned plane integrated campaign system and method | |
| US6621448B1 (en) | Non-contact radar system for reconstruction of scenes obscured under snow and similar material | |
| CN110719442A (en) | Security monitoring system | |
| US5521634A (en) | Automatic detection and prioritized image transmission system and method | |
| CN110097726B (en) | Method and system for monitoring target in precautionary area | |
| JP2001509631A (en) | Intruder detection system | |
| CN110126885B (en) | Railway perimeter intrusion target monitoring method and system | |
| US20060139164A1 (en) | Composite intrusion detection sensor | |
| KR101834124B1 (en) | Multi Lidar System and Drive Method of the Same | |
| JPH02504441A (en) | scanning intrusion detection device | |
| JP3521899B2 (en) | Intruder detection method and intruder detector | |
| CN209993060U (en) | Electronic fence linkage system based on internet of things technology | |
| CN109343079A (en) | A kind of ranging barrier-avoiding method and obstacle avoidance apparatus | |
| CN105676564A (en) | Laser night-vision device with target distance measuring and positioning functions | |
| CN112485781B (en) | Anti-unmanned aerial vehicle unmanned system and method based on deep learning | |
| CN110320507A (en) | A kind of low small slow target detects automatically, tracks, identifying system | |
| CN108423140A (en) | Omnidirectional's Active Acoustic barrier system | |
| CN112859069A (en) | Radar security monitoring method and system | |
| RU2595532C1 (en) | Radar system for protection of areas with small-frame video surveillance system and optimum number of security guards | |
| JPH10241062A (en) | Guard system | |
| CN111681399A (en) | Multi-dimensional three-dimensional safety prevention and control method, device and system | |
| RU2724805C1 (en) | Radar-beam system for guarding perimeters of extended objects and monitoring adjacent territory | |
| US20210349189A1 (en) | Detection Systems, Communications Systems and Induction Motors | |
| JP2017167870A (en) | Flying object monitoring system, and flying object monitoring apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
|
| WW01 | Invention patent application withdrawn after publication |