CN103841378B - A kind of video-aware sensor node of double-deck isomery - Google Patents
A kind of video-aware sensor node of double-deck isomery Download PDFInfo
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- CN103841378B CN103841378B CN201410087776.1A CN201410087776A CN103841378B CN 103841378 B CN103841378 B CN 103841378B CN 201410087776 A CN201410087776 A CN 201410087776A CN 103841378 B CN103841378 B CN 103841378B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention relates to a kind of video-aware sensor node of double-deck isomery, at least including video acquisition unit, wireless communication unit and control unit, also walked about sensing unit including human body, and control unit is specially ARM11 processor control units.Wherein, human body sensing unit of walking about is made up of microwave induced module and human body heat-releasing infrared detection module, fingerprint identification module, being capable of accurate detection mobile human body target；ARM11 processors control unit uses the S3C6410 chips for having transplanted OpenCV image libraries, for node control and video image intelligent analysis；Wireless communication unit is made up of ZigBee CC2530 modules and WIFI232 G modules, respectively transmission objectives characteristic and background image data.The present invention, with small power consumption, swift feature, can realize the continuous uninterrupted tracking of the collaborative perception and target between multinode using the IMAQ of double-deck isomery trigger-type.
Description
Technical field
The present invention relates to a kind of video-aware sensor node, belong to intelligent monitoring technology field.
Background technology
Public safety is the important leverage of urban sustainable development, safeguards that municipal public safety is always to build and management department
The most severe challenge that the shop front is faced.One video surveillance network is made up of sensor node and PC end, and video acquisition is realized respectively
With the function of display.
The usual unitary function of sensor node of the prior art, is only completed video acquisition function, and the control work(of reality
Can be completed by PC end, not give full play to the real-time and initiative of monitoring, hand labor consumption is big；Sensing of the prior art
Device node is often only capable of detecting mobile object, this special objective of human body is not detected, it is impossible to accurate tracking special objective；
Also the sensor node having predicts the direction of advance of target using certain algorithm, to wake up the adjacent node in prediction direction, this
Plant implementation method accuracy limited, easily cause wrong report and failing to report phenomenon.
After sensor node collection video image of the prior art, often only PC is just sent directly to by simple compression
Generator terminal shows or sends to adjacent node carries out Treatment Analysis.Because network speed is limited, or is set to ensure image definition
Larger shooting interval is put, or the camera of low pixel is selected to ensure the real-time of transmission, monitoring effect is limited.
Used as a part for video surveillance network, sensor node is frequently necessary to be scattered in outdoor, and node is by lasting confession
Electricity or often to change battery unrealistic, is typically powered by battery, and network life is to last till several years, it is necessary to which node is frequent
Dormancy.In order to reach dormancy purpose, traditional method is typically reached synchronous, it is necessary to clock is smart between node using software protocol
Exactness is very high, and synchronized algorithm is complicated, and then makes controller circuitry complicated, and stability is limited；The whole network is also used in the prior art
Two kinds of node is disposed, control and video acquisition is respectively used to, the two alternation is to reach energy-conservation purpose, but two kinds are saved
Point interface disunity, is unfavorable for that the whole network is disposed.
The content of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of video-aware sensor node of double-deck isomery,
Double-deck isomery trigger-type IMAQ is taken, moving cell detection moving target is walked using human body, by ARM11 embedded Controls system
System wakes up own node, control video acquisition unit, analysis head end video image and carries out the object matching between multinode with association
With perceiving, realize reducing power consumption, energy saving, realize the continuous uninterrupted tracking of target, realize Intellectualized monitoring.
The present invention is for the solution technical scheme that is used of its technical problem：A kind of video-aware sensor of double-deck isomery
Node, at least including video acquisition unit, wireless communication unit and control unit, it is characterised in that：Also innervation is walked including human body
Answer unit；Described control unit is specially ARM11 processor control units；Human body is walked about sensing unit and ARM11 processor controls
, to connection, video acquisition unit and wireless communication unit are respectively with the double electricity of ARM11 processors control unit to even for unit list electricity processed
Connect；Wherein, human body sensing unit of walking about is made up of microwave induced module and human body heat-releasing infrared detection module, fingerprint identification module.
Human body is walked about in sensing unit, and microwave induced module uses microwave Doppler radar detedtor, for detecting movement
Object；Human body heat-releasing infrared detection module, fingerprint identification module uses human body pyroelectricity infrared sensor, for sensing thermal source；Human body is walked about and senses list
Unit is connected by active filter, voltage operational amplifier and single comparator with ARM11 processors control unit；Microwave induced
Module senses mobile object and when human body heat-releasing infrared detection module, fingerprint identification module senses thermal source, and human body sensing unit of walking about produces level
Signal activation ARM11 processor control units.
The ARM11 processors control unit uses the S3C6410 chips for having transplanted OpenCV image libraries, for recipient
Body is walked about the level signal of sensing unit transmission, controls the video acquisition unit to carry out video acquisition, to gathered video figure
As carrying out intellectual analysis, and the gray feature of moving object is extracted, video image is separated into target signature data and Background
As data, and background image data is compressed using wavelet transformation.
The wireless communication unit is made up of ZigBee CC2530 modules and WIFI232-G modules, ZigBee CC2530
Module transfer target signature data, WIFI232-G module transfer background image datas；Wherein, the pin of ZigBee CC2530 the 7th lead to
Cross R13 and LED0 is connected with GND, the pin of ZigBee CC2530 the 8th are connected with GND, the pin of ZigBee CC2530 the 9th connect with VDD_IO
Connect, the pin of ZigBee CC2530 the 11st are connected with the 29th pin of S3C6410-J33, the pin of ZigBee CC2530 the 12nd and S3C6410-
The 30th pin connection of J33, the pin of ZigBee CC2530 the 14th are connected by resistance R12 with VDD_IO；The pin of WIFI232-G the 32nd with
GND is connected, and the pin of WIFI232-G the 34th are connected with VDD_IO, and the pin of WIFI232-G the 39th are connected with the 33rd pin of S3C6410-J33,
The pin of WIFI232-G the 41st are connected with the 34th pin of S3C6410-J33.
The video acquisition unit uses high-definition camera, and video is carried out under the control of ARM11 processor control units
Collection, and the video image that will be collected is back to ARM11 processor control units.
The present invention has an advantageous effect in that compared to prior art：
（1）Human body walk about sensing unit part in, it is microwave induced module strong antijamming capability, low in energy consumption, be adapted to
LONG-TERM DISTRIBUTION in outdoor, using Doppler effect detection range is remote, fast response time the characteristics of, it is infrared in combination with human body heat-releasing
Detection module detects the pyroelectric infrared of human body, can exactly realize that mobile human body is detected；
（2）Human body is walked about and passes through active filter, operational amplifier between sensing unit and ARM11 processor control units
Connected with single comparator；Active filter can filter out noise and interference signal, extract useful signal, realize accurate detection
Purpose；Operational amplifier is used to amplify small-signal, and the characteristic with low imbalance, open-loop gain high is particularly well-suited to high-gain
Measuring apparatus；Single comparator is used to convert analog signals into binary signal, and the propagation delay time is short, can be walked about in human body
It is rapid when sensing unit detects target to produce level signal to be transmitted to ARM11 processor control units；Waken up using ardware feature
Own node, reaction is fast, detection is accurate；
（3）ARM11 processors control unit uses S3C6410 chips, and small volume, low in energy consumption, performance are high, can be efficiently low
Carry out node control and Computer Vision energy；S3C6410 chips have transplanted OpenCV image libraries simultaneously, can extract motion
The gray feature of object, separates target and background, so that target signature data and background image data are respectively transmitted and turn into
May；
（4）Wireless communication unit is made up of ZigBee CC2530 modules and WIFI232-G modules, wherein ZigBee
CC2530 module transfer speed is low, low in energy consumption, and WIFI232-G module transfer speed is high, power consumption is higher；Target signature data volume
Small, real-time change, is transmitted by ZigBee CC2530 module trigger-types；Background image data amount is big, change small, by
WIFI232-G timing transmissions；So target signature data and background image data are respectively transmitted, and efficiency of transmission is high, can reduce
Node energy is consumed；
（5）Node can carry out video acquisition, self wake-up, target following and image transmitting, and function is complete, to PC end
Dependence is small, can liberate hand labor；
（6）Node interface is unified, and is easy to the whole network to dispose.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the video-aware sensor node of double-deck isomery of the invention.
Fig. 2 is that ARM11 processors control unit of the invention and human body are walked about the connection circuit diagram of sensing unit.
Fig. 3 is the connection circuit diagram of ARM11 processors control unit of the invention and video acquisition unit.
Fig. 4 is the connection circuit diagram of ARM11 processors control unit of the invention and wireless communication unit.
Fig. 5 is workflow diagram of the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Reference picture 1, the present invention at least includes video acquisition unit, wireless communication unit and control unit, also including human body
Walk about sensing unit；Described control unit is specially ARM11 processor control units；Human body is walked about at sensing unit and ARM11
Reason device control unit list electricity is to connection, and video acquisition unit and wireless communication unit are double with ARM11 processors control unit respectively
Electricity is to connection；Wherein, human body sensing unit of walking about is made up of microwave induced module and human body heat-releasing infrared detection module, fingerprint identification module.Human body is walked
In dynamic sensing unit, microwave induced module uses microwave Doppler radar detedtor, for detecting mobile object；Human body heat-releasing is red
Outer detection module uses human body pyroelectricity infrared sensor, for sensing thermal source；Human body walks about sensing unit by active power filtering
Device, voltage operational amplifier and single comparator are connected with ARM11 processors control unit；Movement is sensed in microwave induced module
Object and when human body heat-releasing infrared detection module, fingerprint identification module senses thermal source, human body sensing unit of walking about produces level signal activation ARM11
Processor control unit.The ARM11 processors control unit is used using the S3C6410 chips for having transplanted OpenCV image libraries
Walked about the level signal of sensing unit transmission in human body is received, control the video acquisition unit to carry out video acquisition, to being adopted
Collection video image carries out intellectual analysis, and extracts the gray feature of moving object, video image is separated into target signature data
And background image data, and background image data is compressed using wavelet transformation.The video acquisition unit is using high
Clear camera, carries out video acquisition under the control of ARM11 processor control units, and the video image that will be collected is back to
ARM11 processor control units.
Reference picture 2, human body walks about sensing unit and ARM11 processor control units list electricity to being connected, and human body is walked about sensing
Unit by active filter UAF42, voltage operational amplifier OP07 first and OP07 second and list comparator LM311 with ARM11 at
The control unit connection of reason device.3rd pin of PIR is connected with+5V, and the 1st pin of PIR is connected with GND, the 2nd pin and S3C6410- of PIR
The 23rd pin connection of J36；3rd pin of HB100 is connected with+5V, and the 2nd pin of HB100 is holding wire, and the pin is by a resistance
R29 and electric capacity C19 is connected with the 3rd pin of OP07 second, and the 1st pin of HB100 is connected with GND；The pin of OP07 second the 2nd passes through resistance R25
It is connected with the pin of OP07 second the 6th, the pin of OP07 second the 2nd is connected by resistance R27 with GND, the pin of OP07 second the 3rd passes through resistance R33 and GND
Connection, the pin of OP07 second the 4th is connected with -5V, and the pin of OP07 second the 4th is connected by electric capacity C25 with GND, and the 6th pin of OP07 second is by electricity
Resistance R28 is connected with the 13rd pin of UAF42, and the pin of OP07 second the 7th is connected with+5V, and the pin of OP07 second the 7th is connected by electric capacity C26 and GND
Connect, OP07 second the 5th, 8,9 pin is vacant；14th pin of UAF42 is connected by resistance R21 with the 9th pin of UAF42, and the 8th of UAF42 the
Pin is connected by resistance R22 with the 16th pin of UAF42, and the 4th pin of UAF42 is connected simultaneously by resistance R34 with the 12nd pin of UAF42
And be connected with GND, the 11st pin of UAF42 is connected with+5V, and the 11st pin of UAF42 is connected by C13 and R23 and GND and resistance R23
Connect, the 2nd pin connection of R23 and OP07 first；1st pin of UAF42 is connected by resistance R31, electric capacity C21 with the 3rd pin of OP07 first,
10th pin of UAF42 is connected with -5V, and the 10th pin of UAF42 is grounded by electric capacity C27, UAF42 the 3rd, 5,6,7 pin it is vacant；
R23 is connected by 6 pin of resistance R24 and OP07 first, and the 3rd pin of OP07 first is connected by electric capacity C21 with GND, and the 4th of OP07 first the
Pin is connected with -5V, and the 4th pin of OP07 first is connected by electric capacity C22 with GND, and the 6th pin of OP07 first passes through diode D6 and resistance
R26 is connected, and D6 is grounded by parallel electric capacity C18 and resistance R30, electric capacity C18 in parallel and resistance R30 by resistance R32 and
Diode D7 is connected with the 6th pin of OP07 first；Resistance R26 is connected with the 2nd pin of LM311, and the 7th pin of OP07 first is connected with+5V,
7th pin of OP07 first is connected by electric capacity C23 with GND, OP07 first the 5th, 8,9 pin it is vacant；3rd pin of LM311 passes through current potential
Device RW1 and electric capacity C6, resistance R18 are connected with the 8th pin of LM311 and are connected with 3.3V, and the 2nd pin of LM311 is by parallel connection
Electric capacity C12 and resistance R20 is connected with the 1st and the 4th pin of LM311, the 8th pin of LM311 by resistance R13 and diode D5 with
The 7th pin connection of LM311, the 7th pin of LM311 is connected with the 25th pin of S3C6410-J36；S3C6410-J36 the 1st, 2 pin connect
Ground, S3C6410-J36 the 14th, 47,48,49,50,51,52,53,54 pin it is vacant.
Reference picture 3, the double electricity of video acquisition unit and ARM11 processors control unit to being connected, the 1st pin of OV9655 with
VDD_IO is connected, and the 2nd pin of OV9655 is connected with GND, and the 3rd pin of OV9655 is connected with the 18th pin of S3C6410-J33,
4th pin of OV9655 is connected with the 19th pin of S3C6410-J33, and the 5th pin of OV9655 connects with the 16th pin of S3C6410-J33
Connect, the 6th pin of OV9655 is connected with the 15th pin of S3C6410-J33, the 7th pin of OV9655 and the 14th pin of S3C6410-J33
Connection, the 8th pin of OV9655 is connected with the 13rd pin of S3C6410-J33, the 9th pin of OV9655 and the 12nd of S3C6410-J33 the
Pin is connected, and the 10th pin of OV9655 is connected with the 11st pin of S3C6410-J33, and the 11st pin of OV9655 is with S3C6410-J33's
10th pin is connected, and the 12nd pin of OV9655 is connected with the 9th pin of S3C6410-J33, the 13rd pin and S3C6410-J33 of OV9655
The connection of the 8th pin, the 14th pin of OV9655 is connected with the 7th pin of S3C6410-J33, the 15th pin and S3C6410- of OV9655
The 6th pin connection of J33, the 16th pin of OV9655 is connected with the 5th pin of S3C6410-J33, the 17th pin of OV9655 and
The 17th pin connection of S3C6410-J33, the 18th pin of OV9655 is connected by resistance R77 with GND, and the 19th of OV9655 the and the 20th
Pin is vacant, and the 1st pin of S3C6410-J33 is connected with GND respectively with the 2nd pin, S3C6410-J33 the 20th, 21,22,23,24 pin
It is vacant, S3C6410-J33 the 45th, 47 pin parallel connection after be connected with VDD_IO, S3C6410-J33 the 46th, 48 pin parallel connection after and
VDD_IO connect, S3C6410-J33 the 49th, 51,53 pin parallel connection after be connected with GND, S3C6410-J33 the 50th, 52,54 pin
It is connected with GND after parallel connection.
Reference picture 4, the double electricity of wireless communication unit and ARM11 processors control unit to being connected, the pin of ZigBeeCC2530 the 7th
Be connected with GND by resistance R13 and LED0, the pin of ZigBee CC2530 the 8th are connected with GND, the pin of ZigBee CC2530 the 9th with
VDD_IO is connected, and the pin of ZigBee CC2530 the 11st are connected with the 29th pin of S3C6410-J33, the pin of ZigBee CC2530 the 12nd and
The 30th pin connection of S3C6410-J33, the pin of ZigBee CC2530 the 14th are connected by resistance R12 with VDD_IO；WIFI232-G
32nd pin is connected with GND, and the pin of WIFI232-G the 34th are connected with VDD_IO, and the of the pin of WIFI232-G the 39th and S3C6410-J33
33 pin are connected, and the pin of WIFI232-G the 41st are connected with the 34th pin of S3C6410-J33, and the 1st pin of S3C6410-J33 and the 2nd pin divide
Not and GND connections, S3C6410-J33 the 20th, 21,22,23,24 pin it is vacant, S3C6410-J33 the 45th, 47 pin it is in parallel after
Be connected with VDD_IO, S3C6410-J33 the 46th, 48 pin parallel connection after be connected with VDD_IO, the 49th, 51, the 53 of S3C6410-J33
Be connected with GND after pin parallel connection, S3C6410-J33 the 50th, 52,54 pin it is in parallel after be connected with GND.
Workflow of the invention is：Reference picture 5, node is in the resting state of low-power consumption after working on power, human body is walked
Dynamic sensing unit is started working.When microwave module detect moving object and human body heat-releasing infrared detection module, fingerprint identification module to detect human body red
During outside line, level signal is produced by active filter, operational amplifier and single comparator, and be sent to ARM11 processor controls
Unit processed.After ARM11 treatment control system receives level signal, normal operating conditions is entered from resting state, triggered
OV9655 cameras gather video, and the video image that OV9655 cameras will be collected is back to ARM11 processor control units.
Having transplanted video of the ARM11 processors control unit of OpenCV image libraries to collecting carries out intellectual analysis, extracts object
Gray feature, makes video image be separated into target signature data and background image data, and transmitted by wireless communication unit.Nothing
The ZigBee CC2530 modules of line communication unit are in real time by target signature data is activation to adjacent node；And adjacent node is logical
Cross ZigBee CC2530 modules and receive the target signature data, and the ARM11 processor control units of the adjacent node are isolated
Target signature matched, when the match is successful, then the target is tracked, so as to realize the collaborative perception between multinode.
On the other hand, ARM11 processors control unit carries out wavelet transformation to background image data, passes through after reducing data volume
Background image data timing is sent to PC end by WIFI232-G, and the transmission set in the present embodiment was at intervals of 15 seconds.PC end
Receiving target signature data and background image data carries out scene rebuilding, so as to go back original picture.In the present embodiment, human body walks innervation
Unit is answered to continue to be not detected by within 15 seconds moving target, then to ARM11 processor control unit transmission level signals, ARM11 treatment
Device control unit sends control signal to wireless communication unit and video acquisition unit, and envoy's point enters resting state.
Claims (3)
1. a kind of video-aware sensor node of double-deck isomery, at least including video acquisition unit, wireless communication unit and control
Unit processed, it is characterised in that：Also walked about sensing unit including human body；It is single that described control unit is specially the control of ARM11 processors
Unit；Human body walks about sensing unit and ARM11 processor control units list electricity to being connected, video acquisition unit and wireless communication unit
Electricity double with ARM11 processors control unit are to being connected respectively；Wherein, human body walks about sensing unit by microwave induced module and human body
Heat releases infrared detection module, fingerprint identification module composition；The ARM11 processors control unit is using the S3C6410 cores for having transplanted OpenCV image libraries
Piece, walks about the level signal of sensing unit transmission for receiving human body, controls the video acquisition unit to carry out video acquisition, right
Gathered video image carries out intellectual analysis, and extracts the gray feature of moving object, video image is separated into target signature
Data and background image data, and background image data is compressed using wavelet transformation；The wireless communication unit by
ZigBee CC2530 modules and WIFI232-G modules are constituted, ZigBee CC2530 module transfer target signature data,
WIFI232-G module transfer background image datas；Wherein, the pin of ZigBee CC2530 the 7th are connected by R13 and LED0 with GND,
The pin of ZigBee CC2530 the 8th are connected with GND, and the pin of ZigBee CC2530 the 9th are connected with VDD_IO, ZigBee CC2530 the 11st
Pin is connected with the 29th pin of S3C6410-J33, and the pin of ZigBee CC2530 the 12nd are connected with the 30th pin of S3C6410-J33,
The pin of ZigBee CC2530 the 14th are connected by resistance R12 with VDD_IO；The pin of WIFI232-G the 32nd are connected with GND, WIFI232-G
34th pin is connected with VDD_IO, and the pin of WIFI232-G the 39th are connected with the 33rd pin of S3C6410-J33, the pin of WIFI232-G the 41st with
The 34th pin connection of S3C6410-J33.
2. the video-aware sensor node of double-deck isomery according to claim 1, it is characterised in that：Human body is walked about sensing
In unit, microwave induced module uses microwave Doppler radar detedtor, for detecting mobile object；Human body heat-releasing infrared detection
Module uses human body pyroelectricity infrared sensor, for sensing thermal source；Human body walks about sensing unit by active filter, voltage
Operational amplifier and single comparator are connected with ARM11 processors control unit；Microwave induced module sense mobile object and
When human body heat-releasing infrared detection module, fingerprint identification module senses thermal source, human body walk about sensing unit produce level signal activation ARM11 processors
Control unit.
3. the video-aware sensor node of double-deck isomery according to claim 1, it is characterised in that：The video acquisition
Unit uses high-definition camera, and video acquisition, and the video that will be collected are carried out under the control of ARM11 processor control units
Image is back to ARM11 processor control units.
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| CN104079881B (en) * | 2014-07-01 | 2017-09-12 | 中磊电子（苏州）有限公司 | The relative monitoring method of supervising device |
| CN104318693A (en) * | 2014-10-17 | 2015-01-28 | 无锡港湾网络科技有限公司 | Indoor monitoring system based on infrared and microwave detectors |
| CN105163075A (en) * | 2015-08-27 | 2015-12-16 | 郑州大学 | Wild animal observation device and wild animal observation system |
| CN106534634A (en) * | 2016-11-08 | 2017-03-22 | 天津华来科技有限公司 | Monitoring camera |
| CN109040583A (en) * | 2018-07-25 | 2018-12-18 | 深圳市共进电子股份有限公司 | Web camera energy-saving control method, device, web camera and storage medium |
| CN114302058B (en) * | 2021-12-27 | 2023-05-16 | 浙江大华技术股份有限公司 | Method and device for improving camera wake-up accuracy and readable storage medium |
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| CN202535480U (en) * | 2012-05-21 | 2012-11-14 | 长沙市钶达昌电子科技有限公司 | Panoramic monitoring device based on wireless detection |
| CN203301636U (en) * | 2013-05-21 | 2013-11-20 | 浙江工业大学 | Video monitoring equipment capable of automatically tracking objects |
| CN103546728B (en) * | 2013-11-14 | 2017-03-15 | 北京林业大学 | A kind of wild animal field monitoring device |
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