CN109059757A - Throwing object in high sky intelligent identifying system based on linear array video detection technology - Google Patents
Throwing object in high sky intelligent identifying system based on linear array video detection technology Download PDFInfo
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- CN109059757A CN109059757A CN201810632680.7A CN201810632680A CN109059757A CN 109059757 A CN109059757 A CN 109059757A CN 201810632680 A CN201810632680 A CN 201810632680A CN 109059757 A CN109059757 A CN 109059757A
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- linear array
- charge
- coupled device
- speed
- dsp controller
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0608—Height gauges
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- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention provides a kind of throwing object in high sky intelligent identifying system based on linear array video detection technology, the system includes the sensing unit of setting between floors, sensing unit includes: the first charge-coupled device linear array, the first FPGA processor connecting with the first charge-coupled device linear array, the second charge-coupled device linear array, the second FPGA processor connecting with the second charge-coupled device linear array and the dsp controller being all connected with the first FPGA processor and the second FPGA processor, and the first charge-coupled device linear array and the second charge-coupled device linear array are for being scanned；First FPGA processor and the second FPGA processor have been used to determine whether object fall, and send trigger signal to dsp controller when determining has object fall；Dsp controller is used to send the time difference t and vertical distance h of trigger signal according to two FPGA, determines the parabolic position of falling objects.The present invention can determine the parabolic position of falling objects, and prevention throwing object in high sky behavior occurs.
Description
Technical field
The present invention relates to artificial intelligence machine vision technique fields, and in particular to a kind of based on linear array video detection technology
Throwing object in high sky intelligent identifying system.
Background technique
Throwing object in high sky is referred to as " pain for being suspended in city overhead ", and throwing object in high sky behavior all the time receives much attention, as city
While the uncultivated behavior in city, social danger brought by it is also very big.Since the implementation place of its uncivil behavior is mostly
High-altitude floor, rare witness, the parabolic time is short or even someone deliberately conceals figure in parabolic, so that law enforcement agency is difficult
The legal liabilities of shooter are investigated, such event is commonplace, remains incessant after repeated prohibition.For example, " throwing brick and killing girl baby " event before the several years
Cause social extensive concern after media report, the social concern of people's " crown safety " will be also threatened in relation to city high-altitude parabolic
Cause discussing warmly for society again.
Common fault of the throwing object in high sky as residential building cell management, management regulation are related to social security stabilization and the masses
Life security, however only rely on traditional thought morals publicity be still unable to reach very good effect, especially in high-storey
In residential building, resident is convenient for the moment in order to seek, and the harm of external parabolic is bigger, there is data to suggest that: one 30 grams of egg is from 4 buildings
Throwing will allow people to play swollen packet；Throwing from 8 buildings can allow number of people skin damaged；It gets rid of from 18 buildings height and can break row
The skull of people；It can make one to die instantly under 25 buildings throwings.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the throwing object in high sky intelligence based on linear array video detection technology that the present invention provides a kind of
Identifying system can determine the parabolic position of falling objects, locks the range in responsibility source, provides illegal card for public security organ
According to taking precautions against and prevent all kinds of throwing object in high sky behaviors and occur.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
The present invention provides a kind of throwing object in high sky intelligent identifying system based on linear array video detection technology, including is arranged in building
Sensing unit between layer, the sensing unit include: the first charge-coupled device linear array and first charge-coupled device
First FPGA processor of linear array connection, is connect with the second charge-coupled device linear array the second charge-coupled device linear array
The second FPGA processor and the DSP that is all connected with first FPGA processor and second FPGA processor control
Device, the vertical distance between the first charge-coupled device linear array and the second charge-coupled device linear array are h, in which:
The first charge-coupled device linear array and the second charge-coupled device linear array are for being scanned；At first FPGA
Reason device and second FPGA processor according to the data that corresponding charge-coupled device linear array scanning obtains for determining whether
There is object fall, and sends trigger signal to dsp controller when determining has object fall；The dsp controller is used for basis
Two FPGA send the time difference t and the vertical distance h of trigger signal, determine the parabolic position of falling objects.
In some embodiments, the dsp controller is specifically used for: the time difference of trigger signal is sent according to two FPGA
The t and vertical distance h determines First Speed, and according to the First Speed determine the first of the falling objects fall when
Between, and determine according to first fall time parabolic position of the falling objects；Wherein, the First Speed is lower junk
For body by speed when the first charge-coupled device linear array in vertical direction, first fall time is the lower junk
Body passes through fall time when first charge-coupled device.
In some embodiments, the dsp controller is specifically used for: the time difference of trigger signal is sent according to two FPGA
The t and vertical distance h determines second speed, and according to the second speed determine the second of the falling objects fall when
Between, and determine according to second fall time parabolic position of the falling objects；Wherein, the second speed is lower junk
For body by speed when the second charge-coupled device linear array in vertical direction, second fall time is the lower junk
Body passes through fall time when second charge-coupled device.
In some embodiments, when floor is higher than preset value, the quantity of the sensing unit is at least two；Each biography
Sense unit is arranged successively in the vertical direction, and passes through 433M radio communication between the dsp controller of neighboring sensor unit.
In some embodiments, the dsp controller is the first dsp controller；The system also includes protective unit, institutes
State the air bag that protective unit includes the second dsp controller and connect with the second controller；The protective unit setting exists
Between floor；Pass through 433M radio communication between first dsp controller and second dsp controller；Described first
Dsp controller is also used to that the airbag-releasing can be controlled to the 2nd DSP transmission when receiving the trigger signal
Control signal.
In some embodiments, the number of the air bag is multiple.
In some embodiments, the air bag is U-shaped air bag.
(3) beneficial effect
The embodiment of the invention provides a kind of throwing object in high sky intelligent identifying system based on linear array video detection technology, due to
It is scanned using CCD linear array, and CCD linear array can detecte out the object that high speed falls, therefore can avoid or reduce common
Camera be likely to occur the phenomenon that can not detecting high speed falling objects, improve discrimination.Moreover, dsp controller is according to two
FPGA sends the time difference of trigger signal and vertical distance h can determine the parabolic positions of falling objects, can determine
Object is lower by throwing from what orientation, and then can lock the range in responsibility source, provides illegal evidence for public security organ, prevents
Model occurs with all kinds of throwing object in high sky behaviors are prevented.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 shows the structural schematic diagram of sensing unit in one embodiment of the invention.
Fig. 2 shows distance of fall, fall time, falling speed in one embodiment of the invention and correspond to CCD linear array
Schematic diagram；
Fig. 3 shows the throwing object in high sky intelligent identifying system in one embodiment of the invention based on linear array video detection technology
Structural schematic diagram；
Fig. 4 shows the structural schematic diagram of U-shaped air bag in one embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of throwing object in high sky intelligent identifying system based on linear array video detection technology, the system
Including sensing unit between floors is arranged, as shown in Figure 1, the sensing unit include: the first charge-coupled device linear array, with
First FPGA processor of the first charge-coupled device linear array connection, the second charge-coupled device linear array and described second
Charge-coupled device linear array connection the second FPGA processor and at first FPGA processor and the 2nd FPGA
The dsp controller that reason device is all connected with, between the first charge-coupled device linear array and the second charge-coupled device linear array
Vertical distance be h, in which: the first charge-coupled device linear array and the second charge-coupled device linear array are for carrying out
Scanning；First FPGA processor and second FPGA processor are used for according to corresponding charge-coupled device linear array scanning
Obtained data determine whether object fall, and send trigger signal to dsp controller when determining has object fall；It is described
Dsp controller is used to send the time difference t and the vertical distance h of trigger signal according to two FPGA, determines falling objects
Parabolic position.
It will be appreciated that charge-coupled device English is expressed as Charge Coupled Device, referred to as CCD.Generally
In the case of, the scanning speed of CCD linear array is H=20000 row/second, it is assumed that the vertical distance h between linear array is 0.5m, theoretically
The falling objects that the vertical speed of highest is h*H=10km/s can be captured, it is seen that CCD linear array can perceive the object that high speed falls
Body, and general camera is not accomplished, since the height of current building is higher and higher, is to detect using CCD linear array
It is no to have object fall, can avoid or reduce that general camera is likely to occur the phenomenon that can not detecting high speed falling objects.
It will be appreciated that vertical distance h can be configured according to the height between floor.
In practical application, dsp controller can determine parabolic according to time difference t and vertical distance h using various ways
Position, one way in which are as follows:
First Speed is determined according to the time difference t and the vertical distance h that two FPGA send trigger signal, and according to institute
The first fall time that First Speed determines the falling objects is stated, and the lower junk is determined according to first fall time
The parabolic position of body；Wherein, the First Speed is when falling objects pass through the first charge-coupled device linear array vertical
The speed in direction, first fall time be the falling objects pass through first charge-coupled device when whereabouts when
Between.
Another way are as follows:
Second speed is determined according to the time difference t and the vertical distance h that two FPGA send trigger signal, and according to institute
The second fall time that second speed determines the falling objects is stated, and the lower junk is determined according to second fall time
The parabolic position of body；Wherein, the second speed is when falling objects pass through the second charge-coupled device linear array vertical
The speed in direction, second fall time be the falling objects pass through second charge-coupled device when whereabouts when
Between.
For example, as shown in Fig. 2, parabolic position is h at a distance from vertical direction between the first CCD linear array1, with second
The distance of vertical direction is h between CCD linear array2, h2And h1The distance between be h；When falling objects fall to the first CCD linear array
Fall time i.e. the first fall time be t1, fall time when falling objects fall to the 2nd CCD linear array is the second whereabouts
Time t2, t2And t1Between time difference be t；Speed, that is, First Speed of vertical direction is when object passes through the first CCD linear array
v1, speed, that is, second speed by vertical direction when the 2nd CCD linear array is v2.Dsp controller determines that the process of parabolic position is big
Causing can be with are as follows:
Due to v2 2=2gh2And v1 2=2gh1, therefore obtain:
v1 2-v1 2=2g (h2-h1)
Further derive:
(v2+v1)(v2-v1)=2gh
(v2+v1)(gt2-gt1)=2gh
It obtains:
Due to v2=v1+ gt, therefore,
To obtain First Speed and second speed.
Due to learning First Speed v1, pass through v1=gt1, obtain first time t1, and then pass throughObtain object
Distance of fall h when by the first CCD linear array1。
Alternatively, passing through v2=gt2, obtain the second time t2, and then pass throughObject is obtained by the 2nd CCD line
Distance of fall h when battle array2。
Referring to Fig. 3, when floor is higher, multiple sensing units can be set, pass through 433 nothings between each sensing unit
The communication of line electricity, theoretically by 433M radio communication, communication context can have several hundred rice.That is, being higher than in floor pre-
If when value, the quantity of the sensing unit is at least two, and each sensing unit is arranged successively in the vertical direction, adjacent biography
Feel and passes through 433M radio communication between the dsp controller of unit.
In order to distinguish with other dsp controllers, the dsp controller in the above sensing unit is known as the first DSP control
Device.It can also include protective unit in intelligent identifying system other than sensing unit, the protective unit includes the 2nd DSP
Controller and the air bag being connect with the second controller；The protective unit setting is between floors；The first DSP control
Pass through 433M radio communication between device processed and second dsp controller；First dsp controller is also used to receiving
The control signal that can control the airbag-releasing is sent when the trigger signal to the 2nd DSP.
Here, air bag is mounted in floor gap, when the first dsp controller receives the trigger signal from FPGA processor
When, control signal can also be sent to the second dsp controller, when the second dsp controller receives control signal, can control gas
Capsule is opened, to catch falling objects, falling objects is avoided to pound people etc..
Wherein, the number of air bag is multiple, and the object that can be fallen to different location intercepts, and avoids falling as far as possible
Object pounds people.
Wherein, the shape of air bag can be a variety of, for example, as shown in figure 4, the air bag of this shape can using U-shaped air bag
To prevent falling objects pop-up from causing secondary injury.
In summary:
Throwing object in high sky intelligent identifying system provided by the invention, due to being scanned using CCD linear array, and CCD linear array can
To detect object that high speed falls, therefore can avoid or reduce that general camera is likely to occur can not detect that high speed falls
The phenomenon that object, improves discrimination.Moreover, dsp controller sends the time difference of trigger signal according to two FPGA and erects
Directly distance h can determine the parabolic position of falling objects, it can determine object be thrown from what orientation it is lower, and then can be with
The range for locking responsibility source, provides illegal evidence for public security organ, takes precautions against and prevent all kinds of throwing object in high sky behaviors generations.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (7)
1. a kind of throwing object in high sky intelligent identifying system based on linear array video detection technology, which is characterized in that including being arranged in building
Sensing unit between layer, the sensing unit include: the first charge-coupled device linear array and first charge-coupled device
First FPGA processor of linear array connection, is connect with the second charge-coupled device linear array the second charge-coupled device linear array
The second FPGA processor and the DSP that is all connected with first FPGA processor and second FPGA processor control
Device, the vertical distance between the first charge-coupled device linear array and the second charge-coupled device linear array are h, in which:
The first charge-coupled device linear array and the second charge-coupled device linear array are for being scanned；Described first
The data that FPGA processor and second FPGA processor are used to be obtained according to corresponding charge-coupled device linear array scanning are true
It is fixed whether to have object fall, and trigger signal is sent to dsp controller when determining has object fall；The dsp controller is used
In the time difference t and the vertical distance h that send trigger signal according to two FPGA, the parabolic position of falling objects is determined.
2. system according to claim 1, which is characterized in that the dsp controller is specifically used for: being sent out according to two FPGA
It send the time difference t and the vertical distance h of trigger signal to determine First Speed, and the whereabouts is determined according to the First Speed
First fall time of object, and determine according to first fall time parabolic position of the falling objects；
Wherein, the First Speed is falling objects by speed when the first charge-coupled device linear array in vertical direction
Degree, first fall time are the fall time when falling objects pass through first charge-coupled device.
3. system according to claim 1, which is characterized in that the dsp controller is specifically used for: being sent out according to two FPGA
It send the time difference t and the vertical distance h of trigger signal to determine second speed, and the whereabouts is determined according to the second speed
Second fall time of object, and determine according to second fall time parabolic position of the falling objects；
Wherein, the second speed is falling objects by speed when the second charge-coupled device linear array in vertical direction
Degree, second fall time are the fall time when falling objects pass through second charge-coupled device.
4. system according to claim 1, which is characterized in that when floor is higher than preset value, the number of the sensing unit
Amount is at least two；Each sensing unit is arranged successively in the vertical direction, and is led between the dsp controller of neighboring sensor unit
Cross 433M radio communication.
5. system according to any one of claims 1 to 4, which is characterized in that the dsp controller is the first DSP control
Device；The system also includes protective unit, the protective unit includes the second dsp controller and connects with the second controller
The air bag connect；The protective unit setting is between floors；
Pass through 433M radio communication between first dsp controller and second dsp controller；The first DSP control
Device processed is also used to send the control letter that can control the airbag-releasing to the 2nd DSP when receiving the trigger signal
Number.
6. system according to claim 5, which is characterized in that the number of the air bag is multiple.
7. system according to claim 5, which is characterized in that the air bag is U-shaped air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810632680.7A CN109059757A (en) | 2018-06-20 | 2018-06-20 | Throwing object in high sky intelligent identifying system based on linear array video detection technology |
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| CN201810632680.7A CN109059757A (en) | 2018-06-20 | 2018-06-20 | Throwing object in high sky intelligent identifying system based on linear array video detection technology |
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Cited By (1)
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| CN110275042A (en) * | 2019-05-07 | 2019-09-24 | 深圳市零壹移动互联系统有限公司 | A kind of throwing object in high sky detection method based on computer vision and radio signal analysis |
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