CN109862320A - Image collection and processing system and its method - Google Patents
Image collection and processing system and its method Download PDFInfo
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Abstract
The present invention provides image collections and processing system and its method, and wherein the system includes: image processing apparatus, image gathering device and intelligent terminal, and the image gathering device, intelligent terminal communicate to connect described image processing unit；The described method includes: image processing apparatus receives the video image information that image gathering device is sent, wherein described image collection device includes video monitoring apparatus and wireless sensor network；Described image processing unit carries out corresponding decompression processing to received video image information, and the content of the successive video image information of same sensor node is compared, and determines a need for generating warning information；When generation has warning information, the warning information is sent to predetermined intelligent terminal by described image processing unit.
Description
Technical field
The present invention relates to video image acquisition and processing technology fields, and in particular to image collection and processing system and its side
Method.
Background technique
Video monitoring system in the related technology mainly includes network video server, database server and passes through network
The camera etc. being connected with the server.The size of the usual equipment of the system is larger, network topology structure is complicated, higher cost with
And it is difficult to dispose in certain severe or special application environment.Meanwhile traditional video monitoring system mainly provides video or figure
The acquisition of picture and transfer function can not provide the functions such as image analysis and intelligent early-warning.
Summary of the invention
In view of the above-mentioned problems, the present invention provides image collection and processing system and its method.
The purpose of the present invention is realized using following technical scheme:
First aspect present invention provides image collection and processing system, which includes:
Image processing apparatus, image gathering device and intelligent terminal, the image gathering device, intelligent terminal communication link
Connect described image processing unit；
Described image collection device includes video monitoring apparatus and wireless sensor network, and the video monitoring apparatus is negative
Video image information in duty acquisition surveillance area, carrying out compression to raw video image information by image compression algorithm makes
Its transmission for adapting to wireless sensor network；
The wireless sensor network includes an aggregation node and multiple is set in preset video collect region
Sensor node, each sensor node connect a video monitoring apparatus to acquire corresponding compressed video image information；
The video image information of each sensor node acquisition is sent to the aggregation node, and the aggregation node converges each video image letter
It ceases and is sent to described image processing unit；
Described image processing unit carries out corresponding decompression processing to received video image information, and to same sensor
The content of the successive video image information of node is compared, and determines a need for generating warning information；
Described image processing unit is also used to the warning information of generation being sent to predetermined intelligent terminal.
In one embodiment, the content of the successive video image information of same sensor node is compared, is sentenced
It is fixed whether to need to generate warning information, it can be with are as follows: and an image is more than preset changing value threshold value in the changing value of frequency domain if it exists,
Warning information is then generated, the warning information may include the image, and/or sensor node corresponding with image mark.
In another embodiment, the present invention can also be by extracting other features in video image information, according to the ratio of feature
Whether result judgement is needed to generate warning information.
In a kind of mode that can be realized of first aspect present invention, described image processing unit is also used to be received
Video image information stored.
In a kind of mode that can be realized of first aspect present invention, described image processing unit includes database service
Device, data analytics server and the communication server, the database server, which is mainly responsible for, to be received from image gathering device
Video image information store into the interior database set, the data analytics server is mainly responsible for the video image to storage
The analysis and early warning of information；The communication server is provided and is connect accordingly for described image collection device and intelligent terminal
Mouthful, and by calling stored video image information, inquiry is provided for intelligent terminal, deletion, marks, import and export function
Energy.
In a kind of mode that can be realized of first aspect present invention, the database includes first database and second
Database, for storing video image information corresponding to warning information, second database is used for the first database
Storage is not by the video image information of early warning.The present embodiment by by different types of video image information carry out partitioned storage,
Corresponding data are accessed by intelligent terminal convenient for user.
Second aspect of the present invention provides image collection and processing method, and this method relies on above-mentioned video image and obtains
In processing system, this method comprises:
Image processing apparatus receives the video image information that image gathering device is sent, wherein described image collection device packet
Video monitoring apparatus and wireless sensor network are included, the video monitoring apparatus is responsible for acquiring the video figure in surveillance area
As information, the biography that compression adapts it to wireless sensor network is carried out to raw video image information by image compression algorithm
It is defeated；The wireless sensor network includes an aggregation node and multiple sensors being set in preset video collect region
Node, each sensor node connect a video monitoring apparatus to acquire corresponding compressed video image information；Each sensing
The video image information of device node acquisition is sent to the aggregation node, and the aggregation node converges each video image information and passes
It send to described image processing unit；
Described image processing unit carries out corresponding decompression processing to received video image information, to same sensor node
The content of successive video image information be compared, determine a need for generating warning information；
When generation has warning information, the warning information is sent to predetermined intelligence by described image processing unit
Terminal.
In a kind of mode that can be realized of second aspect of the present invention, the first rear video to same sensor node
The content of image information is compared, and determines a need for generating warning information, comprising:
The frequency domain information of the successive video image information of same sensor node is compared, an image is in frequency if it exists
The changing value in domain is more than preset changing value threshold value, then generates warning information, and the warning information includes the image, and/or
Sensor node mark corresponding with the image.
In a kind of mode that can be realized of second aspect of the present invention, described image processing unit is equipped with database, institute
Stating database includes first database and the second database, this method further include: described image processing unit is by warning information institute
First database described in corresponding video image information storage value will not stored by the video image information of early warning to described second
Database.
In a kind of mode that can be realized of second aspect of the present invention, this method further include:
Described image processing unit receives the encrypted instruction of the predetermined intelligent terminal, and the encrypted instruction includes
Sensor node mark；
Described image processing unit uses preset Encryption Algorithm, identifies to the sensor node in the encrypted instruction
Corresponding video image information is encrypted.
The present embodiment is beneficial to prevent important video image by encrypting to the video image information that user specifies
The privacy of user is protected in the leakage of information, greatly improves the safety of video image information.
The invention has the benefit that overcoming traditional wiring video monitoring system and IP Camera is at high cost, system
Deployment difficulty and the larger disadvantage of installation maintenance difficulty are integrated by the access of image processing apparatus and image gathering device, real
Showed acquisition, the processing integration of video image information, and when video image information occurs abnormal can timely early warning, significantly
Improve the early warning performance of system.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the image collection of an illustrative embodiment of the invention and the structural schematic block diagram of processing system；
Fig. 2 is the image collection of an illustrative embodiment of the invention and the flow diagram of processing method.
Appended drawing reference:
Image processing apparatus 1, image gathering device 2, intelligent terminal 3.
Specific embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1, first aspect present invention embodiment provides image collection and processing system, which includes:
Image processing apparatus 1, image gathering device 2 and intelligent terminal 3, the image gathering device 2, intelligent terminal 3
Communicate to connect described image processing unit 1；
Described image collection device 2 includes video monitoring apparatus and wireless sensor network, the video monitoring apparatus
The video image information being responsible in acquisition surveillance area, compresses raw video image information by image compression algorithm
Adapt it to the transmission of wireless sensor network；
The wireless sensor network includes an aggregation node and multiple is set in preset video collect region
Sensor node, each sensor node connect a video monitoring apparatus to acquire corresponding compressed video image information；
The video image information of each sensor node acquisition is sent to the aggregation node, and the aggregation node converges each video image letter
It ceases and is sent to described image processing unit 1；
Described image processing unit 1 carries out corresponding decompression processing to received video image information, and to same sensing
The content of the successive video image information of device node is compared, and determines a need for generating warning information；
Described image processing unit 1 is also used to for the warning information of generation to be sent to predetermined intelligent terminal 3.
In one embodiment, the content of the successive video image information of same sensor node is compared, is sentenced
It is fixed whether to need to generate warning information, it can be with are as follows: and an image is more than preset changing value threshold value in the changing value of frequency domain if it exists,
Warning information is then generated, the warning information may include the image, and/or sensor node corresponding with image mark.
In another embodiment, the present invention can also be by extracting other features in video image information, according to the ratio of feature
Whether result judgement is needed to generate warning information.
In a kind of mode that can be realized of first aspect present invention, described image processing unit 1 is also used to be connect
The video image information of receipts is stored.
In a kind of mode that can be realized of first aspect present invention, described image processing unit 1 takes including database
Business device, data analytics server and the communication server, the database server, which is mainly responsible for, to be connect from image gathering device 2
The video image information of receipts is stored into the interior database set, and the data analytics server is mainly responsible for the video figure to storage
As the analysis and early warning of information；The communication server is that described image collection device 2 and intelligent terminal 3 provide corresponding access
Interface, and by calling stored video image information, inquiry is provided, deletion, marks, import and export for intelligent terminal 3
Function.
In a kind of mode that can be realized of first aspect present invention, the database includes first database and second
Database, for storing video image information corresponding to warning information, second database is used for the first database
Storage is not by the video image information of early warning.The present embodiment by by different types of video image information carry out partitioned storage,
Corresponding data are accessed by intelligent terminal 3 convenient for user.
As shown in Fig. 2, second aspect of the present invention embodiment provides image collection and processing method, this method is relied on
In the video image acquisition stated and processing system, this method comprises:
S1 image processing apparatus 1 receives the video image information that image gathering device 2 is sent, and wherein described image collects dress
Setting 2 includes video monitoring apparatus and wireless sensor network, and the video monitoring apparatus is responsible for acquiring in surveillance area
Video image information carries out compression to raw video image information by image compression algorithm and adapts it to wireless sensor network
Transmission；The wireless sensor network includes an aggregation node and multiple biographies being set in preset video collect region
Sensor node, each sensor node connect a video monitoring apparatus to acquire corresponding compressed video image information；Respectively
The video image information of sensor node acquisition is sent to the aggregation node, and the aggregation node converges each video image information
And it is sent to described image processing unit 1.
S2 described image processing unit 1 carries out corresponding decompression processing to received video image information, to same sensor
The content of the successive video image information of node is compared, and determines a need for generating warning information.
When generation has warning information, the warning information is sent to predetermined S3 by described image processing unit 1
Intelligent terminal 3.
In a kind of mode that can be realized of second aspect of the present invention, the first rear video to same sensor node
The content of image information is compared, and determines a need for generating warning information, comprising:
The frequency domain information of the successive video image information of same sensor node is compared, an image is in frequency if it exists
The changing value in domain is more than preset changing value threshold value, then generates warning information, and the warning information includes the image, and/or
Sensor node mark corresponding with the image.
In a kind of mode that can be realized of second aspect of the present invention, described image processing unit 1 is equipped with database, institute
Stating database includes first database and the second database, this method further include: described image processing unit 1 is by warning information institute
First database described in corresponding video image information storage value will not stored by the video image information of early warning to described second
Database.
In a kind of mode that can be realized of second aspect of the present invention, this method further include:
Described image processing unit 1 receives the encrypted instruction of the predetermined intelligent terminal 3, the encrypted instruction packet
Include sensor node mark；
Described image processing unit 1 use preset Encryption Algorithm, to the sensor node mark in the encrypted instruction
Know corresponding video image information to be encrypted.
The present embodiment is beneficial to prevent important video image by encrypting to the video image information that user specifies
The privacy of user is protected in the leakage of information, greatly improves the safety of video image information.
The above embodiment of the present invention overcomes traditional wiring video monitoring system and IP Camera is at high cost, system deployment
The difficult and larger disadvantage of installation maintenance difficulty is integrated by the access of image processing apparatus 1 and image gathering device 2, is realized
The acquisition of video image information, processing integration, and when video image information occurs abnormal can timely early warning, mention significantly
The high early warning performance of system.
Above-mentioned video image obtain and processing system and its method in, each sensor node is according to oneself communication stage
The video image information of acquisition is not sent to the aggregation node, comprising:
Level-one sensor node uses direct communication mode, and diode sensor node is selected according to the current remaining of itself
Direct communication mode or indirect communication mode are selected, three-level sensor node uses indirect communication mode；
Wherein, the direct communication mode are as follows: the video image information obtained is directly sent to institute by sensor node
State aggregation node；The indirect communication mode are as follows: sensor node selects one in the sensor node in its communication range
Sensor node is sent to the next-hop node as next-hop node, by the video image information obtained, by next-hop
Node forwards the video image information, until the video image information is sent to aggregation node；
Wherein, the communication distance range that each sensor node is adjustable is all [Smin,Smax], the communication of sensor node
Rank determines by aggregation node, specifically:
(1) when netinit, the aggregation node is to each sensor node broadcasts hello message and starts timer,
After each sensor node receives the hello message, the communication advantage value of oneself is calculated, and send and feed back to the aggregation node
Message, the feedback message include sensor node mark, the communication advantage value and location information:
In formula, HyFor the communication advantage value of sensor node y, NyFor the sensor in sensor node y communication range
Number of nodes,To be less than in sensor node y communication range with sensor node y distanceSensor node quantity；
(2) preset first direct communication distance threshold Zτ1, the second direct communication distance threshold Zτ2, Smax>Zτ2>
Zτ1, the aggregation node according to the location information and communication advantage value of each sensor node distribute sensor node communication stage
Not, and to each sensor node broadcasts information is distributed: if the distance of sensor node to aggregation node is not more than Zτ1, or sensing
Device node to aggregation node distance in [Zτ1,Zτ2] in and communication advantage value be greater than 1/2, then distribute the logical of the sensor node
Letter rank is level-one；If sensor node to aggregation node distance in [Zτ1,Zτ2] interior and communication advantage value is no more than 1/2, then
The communication rank for distributing the sensor node is second level；If the distance of sensor node to aggregation node is greater than Zτ2, then distribution should
The communication rank of sensor node is three-level.
In the present embodiment, the video image information of acquisition is sent to institute according to the communication rank of oneself by each sensor node
Aggregation node is stated, wherein the communication stage is not by the aggregation node according to the communication advantage value and location information of sensor node
It is determined.The present embodiment creatively proposes the New Set of communication advantage value, the index by each sensor node respectively from
Row calculates and feeds back to aggregation node, is conducive to the computational load for balancing each sensor node, rises to each sensor node point
With the other efficiency of communication stage；Rank is communicated by setting, is conducive to the flexibility for improving sensor node routing, is sensor section
Point determines suitable routing mode, saves with aggregation node sensor node apart from each other in terms of sending video image information
Energy consumption.
In one embodiment, the diode sensor node selects direct communication mould according to the current remaining of itself
Formula or indirect communication mode, specifically: set diode sensor node ε with apart from nearest sensor node distance as
Zminε, the distance of diode sensor node to aggregation node is ZoεIf Zminε-Zoε>=0, the diode sensor node ε is always
Select direct communication mode；If Zminε-Zoε< 0, the diode sensor node ε calculates the communication distance threshold value S of oneselfTεIf
STε≥Zoε, then the diode sensor node ε selects direct communication mode；If STε<Zoε, then the diode sensor node ε choosing
Select indirect communication mode, and using apart from nearest sensor node as next-hop node；
Wherein, communication distance threshold value STεIt calculates according to the following formula:
In formula, E0εFor the primary power of diode sensor node ε, EεFor the current remaining of diode sensor node ε.
In the present embodiment, diode sensor node can adjust the communication mould of oneself according to the current remaining of itself
Formula improves the flexibility of diode sensor node-routing.Wherein, the present embodiment is innovatively devised according to capacity factor logical
The measurement index of communication distance threshold value, and determined according to communication distance threshold value with to the comparison result both at a distance from aggregation node
The communication pattern of diode sensor node, be conducive to ensure diode sensor node in terms of sending video image information can
Under the premise of degree, the energy of diode sensor node is optimally saved, the energy consumption of diode sensor node is delayed, from
And extend the duty cycle of diode sensor node, further service life of prolonging wireless sensor network on the whole.
In one embodiment, specific to execute when three-level sensor node selection next-hop node:
(1) three-level sensor node obtains sensor node closer apart from aggregation node relative to it in its communication range
Alternately node constructs alternate node collection；
(2) when initial, three-level sensor node, which determines, selects distance for Smax, and alternate node concentrate selection and its away from
From closest to SmaxAlternate node as next-hop node；
(3) every a preset period Δ T, three-level sensor node updates selection distance according to the following formula, lays equal stress on
It newly selects to select the alternate node of distance as next-hop node closest to what is currently updated with its distance:
In formula, SbFor the selection distance of the three-level sensor node b currently updated, EbFor the current of three-level sensor node b
Dump energy, E0bFor the primary power of three-level sensor node b.
Wherein, when the number of update reaches preset frequency threshold value, or the selection distance updated is less than SminWhen, it is described
The update of three-level sensor node stopping next-hop node.
The present embodiment propose three-level sensor node selection next-hop node specific mechanism, where it is proposed selection away from
From selective goal.The present embodiment determines selection distance according to the energy of three-level sensor node itself, and selects and its distance
Closest to currently update select the alternate node of distance as next-hop node, be conducive to guarantee video image information can
Under the premise of forwarding, it is reduced as far as the next-hop node quantity of forwarding video image information, is turned to be conducive to improve
Send out the efficiency of video image information.
It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function
The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds
Block is completed, i.e., the internal structure of system is divided into different functional modules, to complete all or part of function described above
Energy.The system of foregoing description and the specific work process of terminal, can refer to corresponding processes in the foregoing method embodiment, herein
It repeats no more.
Through the above description of the embodiments, those skilled in the art can be understood that it should be appreciated that can
To realize the embodiments described herein with hardware, software, firmware, middleware, code or its any appropriate combination.For hardware
It realizes, processor can be realized in one or more the following units: specific integrated circuit, digital signal processor, number letter
Number processing system, field programmable gate array, processor, controller, microcontroller, microprocessor, is set programmable logic device
Count other electronic units or combinations thereof for realizing functions described herein.For software implementations, the part of embodiment or complete
Portion's process can instruct relevant hardware to complete by computer program.When realization, above procedure can be stored in meter
It instructs in calculation machine readable medium or as the one or more on computer-readable medium or code is transmitted.It is computer-readable
Medium includes computer storage media and communication media, and wherein communication media includes convenient for passing from a place to another place
Send any medium of computer program.Storage medium can be any usable medium that computer can access.It is computer-readable
Medium can include but is not limited to random access memory, read-only memory mirror image, band Electrically Erasable Programmable Read-Only Memory or its
His optical disc storage, magnetic disk storage medium or other magnetic-memory systems or it can be used in carrying or storing that there is instruction or number
According to structure type desired program code and can be by any other medium of computer access.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. image collection and processing system, characterized in that the system includes:
Image processing apparatus, image gathering device and intelligent terminal, the image gathering device, intelligent terminal communicate to connect institute
State image processing apparatus；
Described image collection device includes video monitoring apparatus and wireless sensor network, and the video monitoring apparatus is responsible for adopting
Collect the video image information in surveillance area, carrying out compression to raw video image information by image compression algorithm keeps it suitable
Answer the transmission of wireless sensor network；
The wireless sensor network includes an aggregation node and multiple sensings being set in preset video collect region
Device node, each sensor node connect a video monitoring apparatus to acquire corresponding compressed video image information；It is each to pass
The video image information of sensor node acquisition is sent to the aggregation node, and the aggregation node converges each video image information simultaneously
It is sent to described image processing unit；
Described image processing unit carries out corresponding decompression processing to received video image information, and to same sensor node
The content of successive video image information be compared, determine a need for generating warning information；
Described image processing unit is also used to the warning information of generation being sent to predetermined intelligent terminal.
2. image collection according to claim 1 and processing system, characterized in that each sensor node is according to the logical of oneself
Believe that the video image information of acquisition is sent to the aggregation node by rank, comprising:
Level-one sensor node uses direct communication mode, and diode sensor node selects straight according to the current remaining of itself
Communication pattern or indirect communication mode are connect, three-level sensor node uses indirect communication mode；
Wherein, the direct communication mode are as follows: the video image information obtained is directly sent to the remittance by sensor node
Poly- node；The indirect communication mode are as follows: sensor node selects a sensing in the sensor node in its communication range
Device node is sent to the next-hop node as next-hop node, by the video image information obtained, by next-hop node
The video image information is forwarded, until the video image information is sent to aggregation node；
Wherein, the communication distance range that each sensor node is adjustable is all [Smin, Smax], the communication rank of sensor node
It is determined by aggregation node, specifically:
(1) when netinit, the aggregation node is to each sensor node broadcasts hello message and starts timer, each to pass
After sensor node receives the hello message, the communication advantage value of oneself is calculated, and send feedback to the aggregation node and disappear
Breath, the feedback message include sensor node mark, the communication advantage value and location information:
In formula, HyFor the communication advantage value of sensor node y, NyFor the sensor node in sensor node y communication range
Quantity,To be less than in sensor node y communication range with sensor node y distanceBiography
Sensor node quantity；
(2) the first direct communication distance threshold Z is presetτ1, the second direct communication distance threshold Zτ2, Smax> Zτ2> Zτ1, institute
Aggregation node is stated according to the communication rank of the location information and communication advantage value of each sensor node distribution sensor node, and to
Each sensor node broadcasts distribute information: if the distance of sensor node to aggregation node is not more than Zτ1Or sensor node
To aggregation node distance in [Zτ1, Zτ2] in and communication advantage value be greater than 1/2, then distribute the communication rank of the sensor node
For level-one；If sensor node to aggregation node distance in [Zτ1, Zτ2] interior and communication advantage value is no more than 1/2, then distribution should
The communication rank of sensor node is second level；If the distance of sensor node to aggregation node is greater than Zτ2, then the sensor is distributed
The communication rank of node is three-level.
3. image collection according to claim 2 and processing system, characterized in that described image processing unit be also used to by
The received video image information of institute is stored.
4. image collection according to claim 3 and processing system, characterized in that described image processing unit includes data
Library server, data analytics server and the communication server, the database server is mainly responsible for will be from image gathering device
Locate received video image information storage into the interior database set, the data analytics server is mainly responsible for the view to storage
The analysis and early warning of frequency image information；The communication server is provided and is connect accordingly for described image collection device and intelligent terminal
Incoming interface, and by calling stored video image information provides inquiry for intelligent terminal, deletion, marks, imports and exports
Function.
5. image collection according to claim 4 and processing system, characterized in that the database includes first database
With the second database, the first database is for storing video image information corresponding to warning information, second data
Library is for storing the not video image information by early warning.
6. image collection and processing method, characterized in that this method comprises:
Image processing apparatus receives the video image information that image gathering device is sent, and wherein described image collection device includes view
Frequency monitoring device and wireless sensor network, the video monitoring apparatus are responsible for acquiring the video image letter in surveillance area
Breath carries out the transmission that compression adapts it to wireless sensor network to raw video image information by image compression algorithm；Institute
Stating wireless sensor network includes an aggregation node and multiple sensor nodes being set in preset video collect region,
Each sensor node connects a video monitoring apparatus to acquire corresponding compressed video image information；Each sensor node
The video image information of acquisition is sent to the aggregation node, and the aggregation node converges each video image information and is sent to institute
State image processing apparatus；
Described image processing unit carries out corresponding decompression processing to received video image information, to the elder generation of same sensor node
The content of rear video image information is compared, and determines a need for generating warning information；
When generation has warning information, the warning information is sent to predetermined intelligence eventually by described image processing unit
End.
7. image collection according to claim 6 and processing method, characterized in that each sensor node is according to the logical of oneself
Believe that the video image information of acquisition is sent to the aggregation node by rank, comprising:
Level-one sensor node uses direct communication mode, and diode sensor node selects straight according to the current remaining of itself
Communication pattern or indirect communication mode are connect, three-level sensor node uses indirect communication mode；
Wherein, the direct communication mode are as follows: the video image information obtained is directly sent to the remittance by sensor node
Poly- node；The indirect communication mode are as follows: sensor node selects a sensing in the sensor node in its communication range
Device node is sent to the next-hop node as next-hop node, by the video image information obtained, by next-hop node
The video image information is forwarded, until the video image information is sent to aggregation node；
Wherein, the communication distance range that each sensor node is adjustable is all [Smin, Smax], the communication rank of sensor node
It is determined by aggregation node, specifically:
(1) when netinit, the aggregation node is to each sensor node broadcasts hello message and starts timer, each to pass
After sensor node receives the hello message, the communication advantage value of oneself is calculated, and send feedback to the aggregation node and disappear
Breath, the feedback message include sensor node mark, the communication advantage value and location information:
In formula, HyFor the communication advantage value of sensor node y, NyFor the sensor node in sensor node y communication range
Quantity,To be less than in sensor node y communication range with sensor node y distanceBiography
Sensor node quantity；
(2) preset first direct communication distance threshold Zτ1, the second direct communication distance threshold Zτ2, Smax> Zτ2> Zτ1,
The aggregation node distributes the communication rank of sensor node according to the location information and communication advantage value of each sensor node, and
Information is distributed to each sensor node broadcasts: if the distance of sensor node to aggregation node is not more than Zτ1Or sensor section
Point arrives the distance of aggregation node in [Zτ1, Zτ2] in and communication advantage value be greater than 1/2, then distribute the communication stage of the sensor node
It Wei not level-one；If sensor node to aggregation node distance in [Zτ1, Zτ2] in and communication advantage value be not more than 1/2, then distribute
The communication rank of the sensor node is second level；If the distance of sensor node to aggregation node is greater than Zτ2, then the sensing is distributed
The communication rank of device node is three-level.
8. image collection according to claim 7 and processing method, characterized in that the method also includes: described image
Processing unit also stores the received video image information of institute.
9. image collection according to claim 8 and processing method, characterized in that described image processing unit is equipped with data
Library, the database include first database and the second database, this method further include: described image processing unit believes early warning
First database described in the corresponding video image information storage value of breath, will not stored by the video image information of early warning to described
Second database.
10. image collection according to claim 6 and processing method, characterized in that this method further include:
Described image processing unit receives the encrypted instruction of the predetermined intelligent terminal, and the encrypted instruction includes sensing
Device node identification；
Described image processing unit uses preset Encryption Algorithm, to corresponding with the sensor node mark in the encrypted instruction
Video image information encrypted.
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| CN101801012A (en) * | 2010-01-29 | 2010-08-11 | 东南大学 | Self-adapting positioning method for mobile nodes of hybrid sensor network |
| CN103298032A (en) * | 2013-07-02 | 2013-09-11 | 重庆大学 | Node energy consumption balancing method for wireless sensor network |
| CN103945179A (en) * | 2014-03-20 | 2014-07-23 | 吉林大学 | Intelligent video monitoring system based on distributed wireless sensor network |
| CN103974370A (en) * | 2014-04-29 | 2014-08-06 | 南京邮电大学 | Wireless body area network routing method based on instantaneous difference learning |
| WO2017161124A1 (en) * | 2016-03-16 | 2017-09-21 | University Of Florida Research Foundation, Incorporated | System for video streaming using delay-aware fountain codes |
| CN109152100A (en) * | 2018-10-10 | 2019-01-04 | 北京交通大学 | Vehicle-mounted passive wireless sensor network ad hoc network method and device |
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