CN104700544B - A kind of security protection Internet of Things invasion information collecting method and system - Google Patents
A kind of security protection Internet of Things invasion information collecting method and system Download PDFInfo
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- CN104700544B CN104700544B CN201510132206.4A CN201510132206A CN104700544B CN 104700544 B CN104700544 B CN 104700544B CN 201510132206 A CN201510132206 A CN 201510132206A CN 104700544 B CN104700544 B CN 104700544B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
- G08B13/2497—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field using transmission lines, e.g. cable
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Abstract
The present invention, which provides a kind of security protection Internet of Things invasion information collecting method and system, methods described, to be included：Intrusion detection signal is generated, in intrusion detection signal described in security protection field emission；Receive and detect intrusion detection signal, when intrusion detection signal produces amplitude modulation(PAM), the first processing is carried out to the intrusion detection signal for producing amplitude modulation(PAM) and obtains invading signal；Invasion signal is demodulated, carrying out second processing to invasion signal obtains invading signal intensity；When invading signal intensity more than invasion signal strength threshold, generation invasion information.By in intrusion detection signal described in security protection field emission, when there is invader, intrusion detection signal produces amplitude modulation(PAM), so as to fast and accurately determine invader, by invasion signal intensity compared with invading signal strength threshold, when invading signal intensity more than invasion signal strength threshold, generation invasion information, so as to effectively avoid reporting by mistake, improves the accuracy of invasion information gathering.
Description
Technical field
The present invention relates to technical field of security and protection, particularly relates to a kind of security protection Internet of Things invasion information collecting method and system.
Background technology
Modern society, science and technology make rapid progress, the extensive use of computer technology and automatic technology, people for
The degree of concern of safety-security area gradually is transferred to develop to Modern wireless communication technology from traditional technological means.And the peace of people
Full prevention awareness is also increasingly turned to the mode that " people's air defense " and " technical precaution " are combined, the life wealth of such people by artificial safety precaution
Production safety has more sound assurance." security protection " has gone through the development history of decades at home, and gradually moves towards one
The field of specialty.Its development course can about be divided into following starting stage, developing stage, raising stage, and this stage is
The rule of security and guard technology development and the stage in direction are explored, in the last few years, security protection industry has further development again.
Existing safety-protection system, camera generally is installed in security protection region, invasion information is gathered by camera, passed through
Manually monitored, this safety-protection system often accurately can not comprehensively find invader when detecting and invading, can not be timely
Report invasion information.
The content of the invention
, can the technical problem to be solved in the present invention is to provide a kind of security protection Internet of Things invasion information collecting method and system
Improve the accuracy of invasion information gathering.
In order to solve the above technical problems, embodiments of the invention provide a kind of security protection Internet of Things invasion information collecting method,
The security protection Internet of Things invasion information collecting method includes：
Intrusion detection signal is generated, in intrusion detection signal described in security protection field emission；
Receive and detect intrusion detection signal, when intrusion detection signal produces amplitude modulation(PAM), to producing amplitude modulation(PAM)
Intrusion detection signal carries out the first processing and obtains invading signal；
Invasion signal is demodulated, carrying out second processing to invasion signal obtains invading signal intensity；
By invasion signal intensity compared with invading signal strength threshold, when invasion signal intensity is strong more than invasion signal
When spending threshold value, generation invasion information.
Preferably, the generation intrusion detection signal, in intrusion detection signal described in security protection field emission, including：
Three road signals are generated, two-way in the signal of three road is sent to demodulator circuit；
Another way signal in the signal of three road is amplified and filtered, obtains intrusion detection signal；
In intrusion detection signal described in security protection field emission.
Preferably, the intrusion detection signal of described pair of generation amplitude modulation(PAM) carries out the first processing and obtains invasion signal, including：
The intrusion detection signal for producing amplitude modulation(PAM) is carried out signal coupling, frequency selection purposes, first amplification, linear transformation,
Automatic gain, amplify again, obtain invading signal.
Preferably, it is described to be demodulated invasion signal, second processing is carried out to invasion signal and obtains invading signal intensity,
Including：
Amplification, collection invasion signal intensity are filtered to invasion signal.
Preferably, it is described before intrusion detection signal described in security protection field emission, including：
Intrusion detection signal in part is carried out coupling detection and shows intrusion detection signal intensity；
Intrusion detection signal is adjusted according to the intrusion detection signal intensity of display.
The present invention also provides a kind of security protection Internet of Things invasion information acquisition system, and the security protection Internet of Things invades information gathering
System includes：
Detectable signal transmitter module, for generating intrusion detection signal, in intrusion detection signal described in security protection field emission；
Signal receiving module, for receiving and detecting intrusion detection signal, when intrusion detection signal produces amplitude modulation(PAM),
The first processing is carried out to the intrusion detection signal for producing amplitude modulation(PAM) to obtain invading signal；
Signal demodulation module, for invasion signal to be demodulated, second processing is carried out to invasion signal and obtains invasion letter
Number intensity；
Information generating module is invaded, for compared with invading signal strength threshold, invasion signal intensity to be worked as into invasion
When signal intensity is more than invasion signal strength threshold, generation invasion information.
Preferably, the detectable signal transmitter module includes：
Signal generation unit, for generating three road signals, two-way in the signal of three road is sent to demodulator circuit；
First signal processing unit, for another way signal in the signal of three road to be amplified and filter, entered
Invade detectable signal；
Signal transmitter unit, in intrusion detection signal described in security protection field emission.
Preferably, the signal receiving module includes：
Secondary signal processing unit, for carrying out signal coupling to the intrusion detection signal for producing amplitude modulation(PAM), frequency is selected
Take, amplification for the first time, linear transformation, automatic gain, amplify again, obtain invading signal.
Preferably, signal demodulation module includes：
Signal intensity collecting unit, for being filtered amplification, collection invasion signal intensity to invasion signal.
Preferably, the security protection Internet of Things invasion information acquisition system also includes：
Signal display module, for carrying out coupling detection to part intrusion detection signal and showing that intrusion detection signal is strong
Degree；
Signal adjusting module, intrusion detection signal is adjusted for the intrusion detection signal intensity according to display.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In such scheme, by intrusion detection signal described in security protection field emission, the intrusion detection letter when there is invader
Number amplitude modulation(PAM) is produced, so as to fast and accurately determining invader, invasion signal intensity is carried out with invasion signal strength threshold
Compare, when invading signal intensity more than invasion signal strength threshold, generation invasion information, so as to effectively avoid reporting by mistake,
Improve the accuracy of invasion information gathering.
Brief description of the drawings
The security protection Internet of Things that Fig. 1 is the present invention invades information collecting method flow chart；
The security protection Internet of Things that Fig. 2 is the present invention invades information collecting method signal transacting schematic diagram；
The security protection Internet of Things that Fig. 3 is the present invention invades information acquisition system structure chart.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
As shown in figure 1, a kind of security protection Internet of Things invasion information collecting method of the embodiment of the present invention, the security protection Internet of Things
Invasion information collecting method includes：
Step 101：Intrusion detection signal is generated, in intrusion detection signal described in security protection field emission.
Wherein, three road signals are generated, two-way in the signal of three road is sent to demodulator circuit；
Another way signal in the signal of three road is amplified and filtered, obtains intrusion detection signal；
In intrusion detection signal described in security protection field emission.
Specifically, crystal oscillator transmission signal, this signal is divided into three tunnels, and two-way is as intrinsic signals for demodulator circuit demodulation invasion
Signal.CF signal is wherein used as all the way, by amplifying circuit, CF signal is amplified to enough power, it is then filtered
Wave circuit is sent to firing cable.
Step 102：Receive and detect intrusion detection signal, when intrusion detection signal produces amplitude modulation(PAM), to producing width
The intrusion detection signal of degree modulation carries out the first processing and obtains invading signal.
Wherein, signal coupling, frequency selection purposes are carried out to the intrusion detection signal for producing amplitude modulation(PAM), are amplified for the first time, linear
Conversion, automatic gain, amplify again, obtain invading signal.
Specifically, the electric field energy of transmitting is received cable reception, can shadow when there is invader to pass through covering electromagnetic field components
Sound receives cable and receives energy, so as to realize amplitude modulation(PAM).Realize that the modulated signal of amplitude modulation is sent to the receiving portion of sensing layer,
First pass around a build-out resistor, the power reflection of anti-stop signal.It is then fed into and to a frequency-selective network, allows the letter of specific frequency
Number it is transferred to next stage.Now, the signal after frequency-selecting, by linear transformation, is branched away two paths of signals, so by first amplification
Afterwards by automatic gain control circuit, the part, which is realized, when prime signal is smaller is automatically increased reception signal, currently
When level reception signal is bigger, the part realizes that reception signal is turned in negative-feedback down automatically.Then all the way by amplifying again
It is sent to demodulator circuit, demodulation invasion signal.
Step 103：Invasion signal is demodulated, carrying out second processing to invasion signal obtains invading signal intensity.
Wherein, amplification, collection invasion signal intensity are filtered to invasion signal.
Specifically, in the demodulator circuit demodulation invasion signal of signal processing, invasion signal is passed through LPF electricity
Road, amplifying circuit is then fed into, gathers invasion signal intensity for microprocessor afterwards.
Step 104：Will invasion signal intensity with invading signal strength threshold compared with, when invade signal intensity be more than into
When invading signal strength threshold, generation invasion information.
Preferably, it is described before intrusion detection signal described in security protection field emission, including：
Intrusion detection signal in part is carried out coupling detection and shows intrusion detection signal intensity；
Intrusion detection signal is adjusted according to the intrusion detection signal intensity of display.
The security protection Internet of Things invasion information collecting method of the embodiment of the present invention, by invading spy described in security protection field emission
Signal is surveyed, intrusion detection signal produces amplitude modulation(PAM) when there is invader, and so as to fast and accurately determine invader, invasion is believed
Number intensity is compared with invading signal strength threshold, when invading signal intensity and being more than invasion signal strength threshold, generate into
Information is invaded, so as to effectively avoid reporting by mistake, improves the accuracy of invasion information gathering.
As shown in Fig. 2 realizing the collection of invasion information in sensing layer, there is the letter of a crystal oscillator transmitting certain frequency before this
Number, this signal is divided into three tunnels, and two-way is as intrinsic signals for demodulator circuit demodulation invasion signal.Wherein believe all the way as carrier frequency
Number, by amplifying circuit, CF signal is amplified to enough power, then circuit is sent to firing cable after filtering.
Before signal is sent to firing cable, couples a part of power and be sent to detecting circuit, fed back to after detection
Microprocessor shows the power for over the display, observing transmission signal by digital-to-analogue conversion, so that regulation transmission signal is so as to more
That finishes changing adapts to different electromagnetic environments.
The electric field energy of transmitting is received cable reception, can influence to receive electricity when there is invader to pass through covering electromagnetic field components
Cable receives energy, so as to realize amplitude modulation(PAM).
Realize that the modulated signal of amplitude modulation is sent to the receiving portion of sensing layer, first pass around a build-out resistor, prevent letter
Number power reflection.It is then fed into a frequency-selective network, allows the signal of specific frequency to be transferred to next stage.Now, frequency-selecting
Rear signal by linear transformation, branches away two paths of signals by first amplification, then by automatic gain control circuit, when
The part, which is realized, when prime signal is smaller is automatically increased reception signal, should when prime reception signal is bigger
Realize that reception signal is turned in negative-feedback down automatically in part.Then demodulator circuit, demodulation invasion letter are sent to by amplification again all the way
Number.
Synchronous signal receiving portion feeds back to mainboard by microprocessor analog-to-digital conversion by detection all the way, shows over the display
Show the intensity of reception signal.In the demodulator circuit demodulation invasion signal of signal processing, invasion signal is passed through LPF
Circuit, amplifying circuit is then fed into, gathers invasion signal intensity, this intensity and sensing layer software design patterns for microprocessor afterwards
Threshold value compare, when more than invasion threshold value when microprocessor invasion information is sent to Internet.
As shown in figure 3, the present invention also provides a kind of security protection Internet of Things invasion information acquisition system, the security protection Internet of Things enters
Invading information acquisition system includes：
Detectable signal transmitter module 301, for generating intrusion detection signal, believe in intrusion detection described in security protection field emission
Number.
Signal receiving module 302, for receiving and detecting intrusion detection signal, when intrusion detection signal produces amplitude modulation(PAM)
When, the first processing is carried out to the intrusion detection signal for producing amplitude modulation(PAM) and obtains invading signal.
Signal demodulation module 303, for invasion signal to be demodulated, second processing is carried out to invasion signal and invaded
Signal intensity.
Invade information generating module 304, for will invasion signal intensity compared with invading signal strength threshold, when entering
When invading signal intensity more than invasion signal strength threshold, generation invasion information.
Preferably, the detectable signal transmitter module includes：
Signal generation unit, for generating three road signals, two-way in the signal of three road is sent to demodulator circuit；
First signal processing unit, for another way signal in the signal of three road to be amplified and filter, entered
Invade detectable signal；
Signal transmitter unit, in intrusion detection signal described in security protection field emission.
Preferably, the signal receiving module includes：
Secondary signal processing unit, for carrying out signal coupling to the intrusion detection signal for producing amplitude modulation(PAM), frequency is selected
Take, amplification for the first time, linear transformation, automatic gain, amplify again, obtain invading signal.
Preferably, signal demodulation module includes：
Signal intensity collecting unit, for being filtered amplification, collection invasion signal intensity to invasion signal.
Preferably, the security protection Internet of Things invasion information acquisition system also includes：
Signal display module, for carrying out coupling detection to part intrusion detection signal and showing that intrusion detection signal is strong
Degree；
Signal adjusting module, intrusion detection signal is adjusted for the intrusion detection signal intensity according to display.
The security protection Internet of Things invasion information acquisition system of the embodiment of the present invention, the method used is invaded for security protection Internet of Things to be believed
Acquisition method is ceased, therefore the feature of security protection Internet of Things invasion information acquisition system invades information collecting method phase with security protection Internet of Things
Together, will not be repeated here.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of security protection Internet of Things invades information collecting method, it is characterised in that including：
Step 101：Intrusion detection signal is generated, in intrusion detection signal described in security protection field emission；
Wherein, the generation intrusion detection signal, includes in intrusion detection signal described in security protection field emission：
The signal that crystal oscillator is launched is divided into three tunnels；
Wherein two-way is transmitted to demodulator circuit as intrinsic signals, invasion signal is demodulated for demodulator circuit, wherein, the invasion
Signal is realized in sensing layer and gathered；
Entered another way as CF signal, the CF signal after amplifying circuit amplification and filter circuit filtering
Detectable signal is invaded, the obtained intrusion detection signal is sent into firing cable, believed in intrusion detection described in security protection field emission
Number；
Described before intrusion detection signal described in security protection field emission, methods described also includes：
Intrusion detection signal in part is carried out coupling detection and shows intrusion detection signal intensity；
Intrusion detection signal is adjusted according to the intrusion detection signal intensity of display；
Step 102：Receive and detect intrusion detection signal, when intrusion detection signal produces amplitude modulation(PAM), adjusted to producing amplitude
The intrusion detection signal of system carries out the first processing and obtains invading signal；
Wherein, it is described when intrusion detection signal produces amplitude modulation(PAM), the is carried out to the intrusion detection signal for producing amplitude modulation(PAM)
One processing, which obtains invasion signal, to be included：
When intrusion detection signal produces amplitude modulation(PAM), signal coupling, frequency are carried out to the intrusion detection signal for producing amplitude modulation(PAM)
Rate is chosen, first amplification, linear transformation, automatic gain, amplifies again, obtains invasion signal；
Specifically, it is described when intrusion detection signal produces amplitude modulation(PAM), the intrusion detection signal for producing amplitude modulation(PAM) is carried out
Signal coupling, frequency selection purposes, first amplification, linear transformation, automatic gain, amplify again, obtaining invasion signal includes：
The electric field energy of transmitting is received cable reception, when there is invader by covering electromagnetic field components can influence to receive cable to connect
By energy, so as to realize the amplitude modulation(PAM) of intrusion detection signal；
Realize that the modulated signal of amplitude modulation is sent to the receiving portion of sensing layer, first pass around a build-out resistor and carry out signal coupling
Close, the power reflection of anti-stop signal；It is then fed into a frequency-selective network and carries out frequency selection purposes, allows the signal of specific frequency to transmit
To next stage；
The signal after frequency-selecting by first amplification, by linear transformation, two paths of signals is branched away, then passes through automatic gain control
Circuit processed, the part, which is realized, when prime signal is smaller is automatically increased reception signal, when prime reception signal is bigger
When, the part realizes that reception signal is turned in negative-feedback down automatically；Then demodulator circuit is sent to by amplification again all the way, by
Demodulator circuit demodulation invasion signal；Step 103：Invasion signal is demodulated, carrying out second processing to invasion signal is entered
Invade signal intensity；
Wherein, described to be demodulated invasion signal, obtaining invasion signal intensity to invasion signal progress second processing includes：
Invasion signal is demodulated, amplification, collection invasion signal intensity are filtered to the invasion signal after demodulation；Specifically
, it is described to be demodulated invasion signal, amplification, collection invasion signal intensity bag are filtered to the invasion signal after demodulation
Include：
In the demodulator circuit demodulation invasion signal of signal processing, the invasion signal after demodulation is passed through low-pass filter circuit,
Amplifying circuit is then fed into, gathers invasion signal intensity for microprocessor afterwards；
Step 104：By invasion signal intensity compared with invading signal strength threshold, believe when invasion signal intensity is more than invasion
During number intensity threshold, generation invasion information；
Wherein, the signal intensity that will invade is compared with invading signal strength threshold, when invasion signal intensity is more than invasion
During signal strength threshold, generation invasion information includes：
By invasion signal intensity compared with the invasion signal strength threshold of sensing layer software design patterns, invasion signal intensity is more than
When invading signal strength threshold, invasion information is sent to Internet by microprocessor.
2. a kind of security protection Internet of Things invades information acquisition system, it is characterised in that the security protection Internet of Things invasion information gathering system
System includes：
Detectable signal transmitter module, for generating intrusion detection signal, in intrusion detection signal described in security protection field emission；
Signal receiving module, for receiving and detecting intrusion detection signal, when intrusion detection signal produces amplitude modulation(PAM), to production
The intrusion detection signal of raw amplitude modulation(PAM) carries out the first processing and obtains invading signal；
Signal demodulation module, for invasion signal to be demodulated, it is strong that invasion signal is obtained to invasion signal progress second processing
Degree；
Information generating module is invaded, for signal intensity will to be invaded compared with invading signal strength threshold, when invasion signal
When intensity is more than invasion signal strength threshold, generation invasion information；
Wherein, the detectable signal transmitter module includes：
Signal generation unit, for generating three road signals, two-way in the signal of three road is sent to demodulator circuit；
First signal processing unit, for another way signal in the signal of three road to be amplified and filter, obtain invasion and visit
Survey signal；
Signal transmitter unit, in intrusion detection signal described in security protection field emission；
Wherein, the signal receiving module includes：
Secondary signal processing unit, for carrying out signal coupling, frequency selection purposes, just to the intrusion detection signal for producing amplitude modulation(PAM)
Secondary amplification, linear transformation, automatic gain, amplify again, obtain invading signal；
Wherein, signal demodulation module includes：
Signal intensity collecting unit, for being filtered amplification, collection invasion signal intensity to invasion signal；
Wherein, the security protection Internet of Things invasion information acquisition system also includes：
Signal display module, for carrying out coupling detection to part intrusion detection signal and showing intrusion detection signal intensity；
Signal adjusting module, intrusion detection signal is adjusted for the intrusion detection signal intensity according to display.
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| CN107437316B (en) * | 2016-05-27 | 2022-11-08 | 成都华立安安防科技有限公司 | Biological induction windowsill and using method thereof |
| CN109673084A (en) * | 2018-12-29 | 2019-04-23 | 桂林凯歌信息科技有限公司 | Dynamic and static human body sense light and its control method based on three-dimensional electric field |
| CN109661085A (en) * | 2018-12-29 | 2019-04-19 | 桂林凯歌信息科技有限公司 | Dynamic and static human body sense light and control method based on induction field |
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| RU2099789C1 (en) * | 1996-07-30 | 1997-12-20 | Кулагин Николай Павлович | Method detecting intrusion of protected space and gear for its realization |
| CN2927514Y (en) * | 2006-04-25 | 2007-07-25 | 武建钢 | Transmitter and receiver for active infrared detector |
| CN101165738A (en) * | 2006-10-19 | 2008-04-23 | 深圳市豪恩科技股份有限公司 | Infrared detecting method and method for updating threshold value |
| CN201025553Y (en) * | 2007-01-22 | 2008-02-20 | 上海申达自动防范系统工程有限公司 | Motive leakage cable intrusion detector |
| CN103345808B (en) * | 2013-06-26 | 2015-09-09 | 武汉理工光科股份有限公司 | The intrusion model recognition methods of fiber grating circumference and system |
| CN204044957U (en) * | 2014-09-15 | 2014-12-24 | 四川为民科技有限公司 | A kind ofly can identify the leakage cable intrusion detector that electric pulse disturbs |
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