CN206210032U - A kind of perimeter intrusion detecting system - Google Patents
A kind of perimeter intrusion detecting system Download PDFInfo
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- CN206210032U CN206210032U CN201621199115.9U CN201621199115U CN206210032U CN 206210032 U CN206210032 U CN 206210032U CN 201621199115 U CN201621199115 U CN 201621199115U CN 206210032 U CN206210032 U CN 206210032U
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Abstract
The utility model is related to a kind of perimeter intrusion detecting system, including：Two detection devices being independently arranged, described each detection device backboard comprising camera, light source and fixed light source, described two cameras are just to setting, and the light source in another detection device is imaged respectively, wherein, graphical analysis and data processing module are additionally provided with least one detection device, described two cameras are connected with graphical analysis and data processing module respectively.The utility model uses bidirectional imaging, knowing between light source height and two cameras under conditions of distance, the height that can be imaged in two cameras by invader judges the size of invader, effectively eliminates infrared emission because leaf or toy block the wrong report that light beam brings.The utility model has alarm, and accuracy is high, environmental suitability is strong, it is easy to install, easy to use, with low cost, the features such as integrated video function.
Description
Technical field
The utility model is related to perimeter security protection technology field, and in particular to a kind of perimeter intrusion detecting system and side
Method, is mainly used in the boundary defence of architecture enclosing, is also used for the protection in door and window in building, passageway.
Background technology
Circumference security protection refers to such as national defence border, military base, key departments of government, oil depot coalfield, nuclear energy in important area
Power station, solar power station, transformer station of power plant, bank, prison, museum, airport, harbour, villa community, data center, Shui Chu
Reason factory, chemical plant, school and other great infrastructure etc., to prevent illegal invasion destructive activity, along place circumference shape
Into safety precaution, invader is blocked in week out-of-bounds.
Traditional safe precaution measure be set at the exterior perimeter in these regions some physical protections (such as iron bar,
Enclosure wall, steel wire hedge net etc.) barrier or obstacle, arrangement personnel step up patrols.However, manpower take precautions against often by the time, region,
The influence of the factor such as peopleware and energy, also starts a leak and slips up unavoidably.For anti-illegal-inbreak event, reduce artificial
The intensity of security work, automatic invasion detecting device is especially necessary.
In existing circumference security protection, infrared emission is the most frequently used safety alarm detector.It is sent out by an infrared light
Emitter, an infrared light receiver composition, form stealthy light beam together between transmit and receive, make to connect when someone crosses light beam
When receipts device cannot receive infrared light, alarm signal is given.But infrared emission degree of protection is relatively low, and protection distance is shorter, light beam
Section is small, i.e., several centimetres of light beam, to obtain larger guard plot, it is necessary to which multipair infrared emission is arranged in parallel, and in the market claims
Be echelette (two light beams, four light beams are even more more), this quantity increases the workload that increased system debug.
And, one side infrared emission easily receives many objective condition, such as defence area harsh climate, wind speed, rainfall, snow depth
Etc. the influence of weather conditions and debris, high light, dust, leaf, toy invasion etc., the probability of false alarm is caused to raise.Separately
On the one hand because receiver uses big lens light gathering mode, therefore the light that transmitter is directly projected not only is received, and can be connect
Various the reflected lights even light of the sun or illuminating lamp are received, therefore easily produces wrong report, be also easily broken into target by reflective
Mirror duplicity is swarmed into.
In summary perimeter intrusion detecting technology, existing perimeter protection detection system can be effected by environmental factors,
Cause its output signal to produce certain error, cause wrong report.It is not high to ambient lighting sensitive, detection reliability, can only
Detect whether invasion occur, it is difficult to differentiate the circumstance of occlusion that the objects such as toy, leaf are caused, rate of false alarm is higher, take precautions against scope
Smaller, debugging is difficult, it is difficult to realize low cost, high sensitivity, the Intrusion Detection Alarm of low rate of false alarm.
Utility model content
For the shortcoming of above-mentioned prior art, the purpose of this utility model is that the circumference invasion for providing a kind of low wrong report is visited
Examining system and method, effectively solve the problems, such as that existing boundary defence easily occurs false alarm, and with alarm, accuracy is high, environment is adapted to
Property is strong, it is easy to install, easy to use, with low cost, the features such as integrated video function.
To achieve these goals, the utility model provides a kind of perimeter intrusion detecting system, including：Two for being independently arranged
Individual detection device, described each detection device backboard comprising camera, light source and fixed light source, described two cameras are just
To setting, and the light source in another detection device is imaged respectively, wherein, it is additionally provided with figure at least one detection device
As analysis and data processing module, described two cameras are connected with graphical analysis and data processing module respectively.
The light source is the spot light of linear light sorurce or multiple linear arrangements.
The light source includes visible ray, or infrared light, or visible ray and infrared light.
The backboard of the fixed light source is constituted using dead color system outer layer.
Also include sensor devices in the detection device.
A kind of perimeter intrusion detecting method, the method comprises the following steps：
Step one, two cameras are focused by target of relative another detection device inner light source, and light source sends
The imaged lens of light be imaged on the focal plane of camera；
Step 2, it is determined that the imaging region including all light sources, with light source bearing of trend as abscissa, by same abscissa
The colour phase adduction mapping of upper multiple pixels, forms a curve；
Whether step 3, according to the change of curve, judges there is intrusion behavior at detection scene, as someone from two spies
When passing through between surveying device, imaging of the light source in camera will be blocked, now send alarm.
If light source is linear light sorurce, during without intrusion behavior, curve is bent when having intrusion behavior close to a high-order straight line
There is trough in line.
If light source is the spot light of multiple linear arrangements, during without intrusion behavior, curve is multiple ridge curves, have into
When invading behavior, crest feature is by significant change.
The crest quantity and position are corresponding with spot light distribution.
Compared with prior art, the utility model includes two detection devices being independently arranged, described each detection device
The backboard of camera, light source and fixed light source is included, the utility model uses bidirectional imaging, knowing light source height and two
Between camera under conditions of distance, the height that can be imaged in two cameras by invader is big to judge invader's
It is small, infrared emission is effectively eliminated because leaf or toy block the wrong report that light beam brings.And the utility model can be carried
For two-way video, therefore more invader's information can be obtained.
The utility model increases line source (spot light) in the case where monitoring area and distance are all very big by simple
Highly, it is possible to increase investigative range, this hardly increases workload in debugging, reduces maintenance cost when using, and
The high-level safety requirements of those large-scale special sensitive detection objects can be met.The utility model changes conventional circumference security protection and visits
Survey device environmental suitability is poor, easily wrong report shortcoming, can round-the-clock reliable and stable work, the scope of application under harsh and unforgiving environments
Extensively, installation and debugging are simple and convenient, long service life, rate of false alarm are low, substantially reduce operating cost.
The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Brief description of the drawings
Fig. 1：The utility model perimeter intrusion detecting system schematic；
Fig. 2：The utility model perimeter intrusion detecting method flow diagram.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described to the technical scheme in the utility model embodiment.Obviously, retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
The utility model is described in further detail with reference to Figure of description.
As shown in figure 1, a kind of perimeter intrusion detecting system that the utility model is provided, including：Two spies being independently arranged
Device is surveyed, described each detection device includes the backboard of camera 11, light source 12 and fixed light source, and described two cameras are just
To setting, and the light source in another detection device is imaged respectively, wherein, it is additionally provided with figure at least one detection device
As analysis and data processing module, described two cameras are connected with graphical analysis and data processing module respectively.
In specific implementation, the utility model installs a pair of detection devices, described two detection dresses in the circumference for needing to take precautions against
Put arranged apart, two cameras set and the light source in another detection device is imaged respectively face-to-face.When have into
The person of invading between two detection devices by when, imaging of the light source in camera, the graphical analysis sum in system will be blocked
Judge whether that someone invades according to the change of image according to processing module, in this way, then send alarm.
The utility model perimeter detection system can be powered using dc source, and the power supply includes solar panel
And battery.The purpose of solar panel and battery is to make whole system more energy-conservation, meets environmental requirement, while
Dependence of the whole system for extraneous electric power is solved to a certain extent, makes the stability of system stronger.
The utility model uses bidirectional imaging, is knowing between light source height and two cameras under conditions of distance, can
The size of invader is judged with the height being imaged in two cameras by invader, infrared emission is effectively eliminated due to tree
Leaf or toy block the various interference wrong report that light beam brings.
The utility model light source 12 is the spot light of linear light sorurce or multiple linear arrangements.The light source 12 is included can
See light, or infrared light, or visible ray and infrared light.Due to the development of photographic sensitive technology, in the case where daytime is without the sun, lead to
Normal ambient light can just provide enough brightness makes white object be imaged well.Therefore, for save energy, this practicality is new
Light source that can be with light and dark striped to be used instead of daytime in type.
In specific implementation, if light source only includes visible ray, the system can also serve as illuminator at night, can play
Warning function.If light source only includes infrared light, at this moment camera is infrared camera, and system can then be carried out regardless of day and night
Work, has hidden effect in night.If light source includes visible ray and infrared light, then camera is in light on daytime simultaneously
Colour imaging is enabled when good, and infrared photography pattern is enabled at light bad night.
The backboard of the utility model fixed light source is constituted using dead color system outer layer.The selection and application of light source as described above,
Purpose is to provide a background image for stabilization to camera, and in order to strengthen image recognition effect, light source is in the picture
Brightness value try one's best height, and the brightness of light source surrounding is as far as possible low, therefore the backboard of fixed light source and device thereon are tried one's best and adopted
It is with dead color.
In specific implementation, the right opposite of the utility model camera is another detection device, and analysis area is the back of the body with light source
Plate region, even if opposite direction is the direction that sunlight irradiation comes, only need to be using backboard and light source as the two ends of white balance adjusting, that
Sunshine will not also produce influence to imaging and analysis, solve conventional video and detect insoluble problem, and improve
Traditional infrared is to penetrating or echelette occurs a large amount of in sunrise or at sunset because that cannot eliminate the sunshine of intimate direct projection
The shortcoming of wrong report.
Also include sensor devices in the utility model detection device.In implementation, the utility model perimeter detection system daytime
The switching at night can be completed according to the brightness automatic discrimination of imaging, it is also possible to conversion is judged by increasing sensor devices.
As shown in Fig. 2 a kind of perimeter intrusion detecting method that the utility model is provided, the method comprises the following steps：
S201, two cameras are focused by target of relative another detection device inner light source, what light source sent
The imaged lens of light are imaged on the focal plane of camera.
S202, it is determined that the imaging region including all light sources, with light source bearing of trend as abscissa, by same abscissa
The colour phase adduction mapping of multiple pixels, forms a curve.
Whether S203, according to the change of curve, judges there is intrusion behavior at detection scene, as someone from two detections
When passing through between device, imaging of the light source in camera will be blocked, now send alarm.
In above-mentioned steps S201, two cameras are all focused by target of the detection device inner light source on opposite, with
Obtain optimal background image.
In above-mentioned steps S202, specifically, can determine that a strip imaging region including all light sources, the strip
The long side direction of shape imaging region is identical with line source or spot light bearing of trend.
In above-mentioned steps S203, if light source is linear light sorurce, during without intrusion behavior, curve is straight close to a high position
Line, when having intrusion behavior, there is trough in curve.
In above-mentioned steps S203, if light source is the spot light of multiple linear arrangements, during without intrusion behavior, curve is
Multiple ridge curves, when having intrusion behavior, crest feature is by significant change.Crest quantity and position are corresponding with spot light distribution.
Perimeter detection system provided by the utility model is made up of two detection devices being independently arranged, each detection dress
Put the backboard comprising camera, light source and fixed light source.The imaged lens of light that light source sends are on the focal plane of camera
Imaging, when someone between two detection devices by when, imaging of the light source in camera will be blocked, the image point in system
Analysis and data processing module judge whether that someone invades according to the change of image.The utility model can be according to the feature of intrusion target
Come the target for selecting to need to monitor, usual perimeter alarm system is mainly used to guard against the climbing of people and cuts the behavior of fence, flies
The toys such as bird, cat and mouse, and harassing and wrecking of the leaf to fence, although belong to the vibrations that invasion is caused, but easily triggering is missed
Report.The height that the utility model can be imaged by invader in two cameras judges the size of invader, effectively disappears
Except infrared emission because leaf or toy block the various interference wrong report that light beam brings.
The light beam that misplaced between two detection devices of the utility model coordinates, and can form " the light that an intruder is difficult to cross over
Band ", reliability is very high, and any target can not all be crossed over easily.Even in the case where monitoring area and distance are all very big, leading to
Cross simple increase line source (spot light) height, it is possible to increase investigative range, this hardly increases workload in debugging,
Maintenance cost when using is reduced, and the high-level safety requirements of those large-scale special sensitive detection objects can be met.This reality
False alarm can be effectively eliminated while detection probability high is kept, it is ensured that do not fail to report, wrong report is rejected, with alarm with new
Accuracy is high, environmental suitability is strong, it is easy to install, easy to use, the advantages of with low cost.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of perimeter intrusion detecting system, it is characterised in that including：Two detection devices being independently arranged, described each spy
The device backboard comprising camera (11), light source (12) and fixed light source is surveyed, described two cameras are just to setting, and difference
Light source in another detection device is imaged, wherein, graphical analysis and data are additionally provided with least one detection device
Processing module, described two cameras are connected with graphical analysis and data processing module respectively.
2. perimeter intrusion detecting system according to claim 1, it is characterised in that the light source (12) for linear light sorurce or
The spot light of the multiple linear arrangements of person.
3. perimeter intrusion detecting system according to claim 2, it is characterised in that the light source (12) comprising visible ray,
Or infrared light, or visible ray and infrared light.
4. the perimeter intrusion detecting system according to claim 1 or 3, it is characterised in that the backboard of the fixed light source is adopted
Constituted with dead color system outer layer.
5. perimeter intrusion detecting system according to claim 4, it is characterised in that also include in the detection device photosensitive
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199115.9U CN206210032U (en) | 2016-11-07 | 2016-11-07 | A kind of perimeter intrusion detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199115.9U CN206210032U (en) | 2016-11-07 | 2016-11-07 | A kind of perimeter intrusion detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206210032U true CN206210032U (en) | 2017-05-31 |
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ID=58751792
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621199115.9U Expired - Fee Related CN206210032U (en) | 2016-11-07 | 2016-11-07 | A kind of perimeter intrusion detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206210032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448009A (en) * | 2016-11-07 | 2017-02-22 | 上海锂居信息科技有限公司 | Perimeter intrusion detection system and method |
| CN110911999A (en) * | 2019-12-10 | 2020-03-24 | 国网青海省电力公司海北供电公司 | Multifunctional maintenance power box with monitoring function |
-
2016
- 2016-11-07 CN CN201621199115.9U patent/CN206210032U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448009A (en) * | 2016-11-07 | 2017-02-22 | 上海锂居信息科技有限公司 | Perimeter intrusion detection system and method |
| CN110911999A (en) * | 2019-12-10 | 2020-03-24 | 国网青海省电力公司海北供电公司 | Multifunctional maintenance power box with monitoring function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20181107 |