A kind of embedded safety device of two passages
Technical field
The present invention relates to safety-security area, more particularly to a kind of embedded safety device of two passages.
Background technology
Safety and protection system (security&protection system, SPS) for the purpose of safeguarding social public security,
Application safety takes precautions against intrusion alarm system, video security monitoring system, the gateway control that product and other Related products are constituted
The liquid crystal-spliced wall system of system processed, BSV, gate inhibition's fire-fighting system, anti-explosion safety inspection system etc.;Or by these systems be subsystem
Combination or integrated electronic system or network.
Optical fiber micro-vibration warning system of the prior art is as shown in Figure 1.The optical fiber micro-vibration warning system includes master
Control computer, master control instrument, optical fiber terminal box, guiding optical cable and sensing optic cable.Main control computer is connected with master control instrument, for extracting
Master control instrument output signal carries out subsequent treatment;It is additionally operable to run optical fiber micro-vibration early warning system software, directly displays monitoring pipeline
The situation of circuit or surrounding enviroment.Master control instrument is the core component of system, and high stable, high accuracy are contained in the inside of master control instrument
Light source module, light path coupling module and detector module etc..Optical fiber terminal box is fibre junction equipment, built-in passive fiber coupling
Clutch part.Guiding optical cable is used to realize the optical cable of optical signal transmission, insensitive to external world, by termination box connect sensing optic cable and
Master control instrument.Sensing optic cable is used to realize optical signal sensing and transmits, to external world vibration sensing.
The shortcoming of prior art is shorter monitoring distance, it is impossible to which signal to external world is distinguished that such as outer signals are
Invader's behavior signal (alarm signal) or natural zone phenomenon and the signal (noise signal) of natural environment disturbance, prior art
Externally sector signal can not carry out feature extraction and Intelligent Recognition and cause rate of false alarm higher.
The content of the invention
In view of this, the present invention provides a kind of embedded safety device of two passages, can be to (the alarm of invader's behavior signal
Signal) and natural zone phenomenon and natural environment disturbing signal (noise signal) carry out effective feature extraction and Intelligent Recognition.This
Compared with prior art, also the volume including device diminishes the advantage of invention and device can be independently operated, and be calculated without master control
Machine.
The invention provides a kind of embedded safety device of two passages, the device includes:First phototriode, the second light
Electric triode, electronic signal processing module, master controller, light control plate, light source, 1 × 2 coupler, the first optical fiber flange and the second light
Nanofarads are blue;
The output end of first phototriode is connected with the first input end of the electronic signal processing module, for connecing
The optical signal of first passage in optical cable is received, and the optical signal of the first passage is converted into the first electric signal;
The output end of second phototriode is connected with the second input of the electronic signal processing module, for connecing
The optical signal of second channel in optical cable is received, and the optical signal of the second channel is converted into the second electric signal;
The electronic signal processing module output end is connected with the AD conversion interface set on the master controller, for processing
The second electric signal of first electric signal and treatment;
The master controller, for treated first electric signal and treated second electric signal
Carry out feature extraction and Intelligent Recognition;The master controller also sets up I/O interface, and the I/O interface is connected with indicator lamp, for root
Alarm signal is sent according to the state of Intelligent Recognition output control indicator lamp;The DA translation interfaces set on the master controller and institute
The input connection of light control plate is stated, for the control voltage signal of light control plate described in output control;
The output end of the light control plate is connected with the input of the light source, for described control voltage signal to be changed
It is control intensity of light source signal;
The output end of the light source is connected with the input of 1 × 2 coupler, for according to the control intensity of light source
Signal sends the optical signal of varying strength;
First output end of 1 × 2 coupler is connected with the input of first optical fiber flange, 1 × 2 coupling
Second output end of device is connected with the input of second optical fiber flange, for the optical signal of varying strength to be divided into the first light
Signal and the second optical signal;
First optical fiber flange, for exporting the first optical signal;
Second optical fiber flange, for exporting the second optical signal.
Further, the I/O interface is also connected with relay board, for according to Intelligent Recognition result output control relay
The control relay partitioned signal of device board status, the relay board is connected with switch, for the state of controlling switch.
Further, the electronic signal processing module include the first AC signal separative element, the first signal condition unit,
First direct current signal separative element, secondary signal conditioning unit, the second AC signal separative element, the 3rd signal condition unit,
Second direct current signal separative element and the 4th signal condition unit;
The first AC signal separative element, for the AC signal in first electric signal to be separated;Institute
State the first signal condition unit to be connected with the first AC signal separative element, for being isolated from the first electric signal to described
AC signal is nursed one's health;
The first direct current signal separative element, for the direct current signal in first electric signal to be separated;Institute
State secondary signal conditioning unit to be connected with the first direct current signal separative element, for being isolated from the first electric signal to described
Direct current signal is nursed one's health;
The second AC signal separative element, for the AC signal in second electric signal to be separated;Institute
State the 3rd signal condition unit to be connected with the second AC signal separative element, for being isolated from the second electric signal to described
AC signal is nursed one's health;
The second direct current signal separative element, for the direct current signal in second electric signal to be separated;Institute
State the 4th signal condition unit to be connected with the second direct current signal separative element, for being isolated from the second electric signal to described
Direct current signal is nursed one's health.
Further, described device also includes temperature control circuit board, the output end of the temperature control circuit board and the light source
Input is connected, for adjusting light source temperature operationally.
Further, described device also includes power supply, for being powered to the temperature control circuit board and the light control plate.
Further, described device also includes serial ports and network interface.
Further, the master controller is STM32F 107.
Further, the cooling piece control chip of the temperature control circuit board is ADN8830.
A kind of embedded safety device of two passages that the present invention is provided, by the first phototriode, the second photoelectricity three-level
Pipe, electronic signal processing module, master controller, light control plate, light source, 1 × 2 coupler, the first optical fiber flange and the second optical fiber flange
Composition safety device, the signal that this device can be to external world such as alarm signal or interference signal carry out validity feature extraction and intelligence
Can recognize, to improve the accuracy rate that the embedded safety device of two passages is alarmed.In addition, beneficial effects of the present invention also include that two lead to
The embedded safety device small volume in road, independently operable, more convenient hidden installation.
Brief description of the drawings
By the detailed description made to non-limiting example made with reference to the following drawings of reading, it is of the invention other
Feature, objects and advantages will become more apparent upon;
Fig. 1 is the optical fiber micro-vibration warning system of prior art;
Fig. 2 is the embedded safety device figure of a kind of two passage that the embodiment of the present invention one is provided;
Fig. 2 a are the structure charts of the voltage signal processing module that the embodiment of the present invention one is provided;
Fig. 3 is that the embodiment of the present invention two provides a kind of light path principle figure of the embedded safety device of two passages.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part rather than full content related to the present invention is illustrate only in description, accompanying drawing.
Embodiment one
The embodiment of the present invention one provides a kind of embedded safety device of two passages.Fig. 2 is that the embodiment of the present invention one is provided
A kind of embedded safety device figure of two passages.As shown in Fig. 2 the safety device includes:First phototriode 101, second
Phototriode 102, electronic signal processing module 103, master controller 104, light control plate 105, light source 106,1 × 2 coupler 108,
First optical fiber flange 109 and the second optical fiber flange 110;
The output end of first phototriode 101 is connected with the first input end of the electronic signal processing module 103,
For receiving the optical signal of first passage in optical cable, and the optical signal of the first passage is converted into the first electric signal;It is described
The output end of the second phototriode 102 is connected with the second input of the electronic signal processing module 103, for receiving optical cable
The optical signal of middle second channel, and the optical signal of the second channel is converted into the second electric signal;The Electric signal processing mould
The output end of block 103 be connected with the AD conversion interface set on the master controller 104, for processing the first electric signal and processing the
Two electric signals;
The master controller 104, for treated first electric signal and treated second electricity
Signal carries out feature extraction and Intelligent Recognition;The master controller 104 also sets up I/O interface, and the I/O interface connects with indicator lamp
Connect, for sending alarm signal according to the state of Intelligent Recognition output control indicator lamp;The DA set on the master controller 104
Translation interface is connected with the input of the light control plate, for the control voltage signal of light control plate described in output control 105;Its
In, treated first electric signal of the master controller 104 pairs and treated second electric signal carry out spy
Levy that to extract with Intelligent Recognition be that the feature of alarm signal or noise signal both different signals is extracted, alarm signal
Number different with the feature of noise signal, master controller 104 can be identified to the feature of both signals, so that judge need to not
Need to send system early warning or Real-time Alarm signal, in general, alarm signal refers to the behavior signal of invader, such as climb,
The behavior signals such as shearing, walking, noise signal refers to nature zone phenomenon and natural environment disturbing signal, and natural zone phenomenon is as follows
Rain, snow, blow, natural environment disturbance such as animal is walked about.
The master controller 104 also sets up I/O interface, and the I/O interface is connected with indicator lamp 111, for according to intelligent knowledge
The state of other output control indicator lamp 111 sends alarm signal;When 104 pairs of treated first electric signals of master controller
Feature extraction and Intelligent Recognition are carried out with treated second electric signal, master controller 104 identifies first electricity
Signal or second electric signal are alarm signal, then alarm signal is passed to instruction by master controller 104 by I/O interface
Lamp 111, indicator lamp 111 notifies that relevant personnel's security protection region is invaded by flicker.When master controller 104 identifies described
One electric signal or second electric signal are noise signal, then main control is not made a response.
The high-quality detectable signal that the safety device returns front-end vibration sensing optic cable, with reference to advanced signal acquisition
Treatment and Intellectual Analysis Technology, realize the various dimensions unified algorithm engine such as time domain, frequency domain, wavelet field, to alarm signal or make an uproar
Acoustical signal carries out effective feature extraction and Intelligent Recognition.
The output end of the light control plate 105 is connected with the input of the light source 106, for described control voltage to be believed
Number be converted to the control strength signal of light source 106;The output end of the light source 106 connects with the input of 1 × 2 coupler 108
Connect, the optical signal for sending varying strength according to the control strength signal of light source 106;The light source 106 is FG-BT-
S364C8P3-00。
First output end of 1 × 2 coupler 108 is connected with the input of first optical fiber flange 109, and described 1
Second output end of × 2 couplers 108 is connected with the input of second optical fiber flange 110, for by the light of varying strength
Signal is divided into the first optical signal and the second optical signal;First optical fiber flange 109, for exporting the first optical signal;Described
Two optical fiber flanges 110, for exporting the second optical signal.
The embedded safety device of two passages that the embodiment of the present invention one is provided, by the first phototriode 101, the second light
Electric triode 102, electronic signal processing module 103, master controller 104, light control plate 105, light source 106,1 × 2 coupler 108,
One optical fiber flange 109 and the composition safety device of the second optical fiber flange 110, the safety device externally can carry out feature by sector signal
Extract and intelligent discrimination, improve the accuracy of the alarm of safety device, furthermore, described safety device small volume and can be with
It is independently operated, and enables that safety device is hidden and install, be suitable for the perimeter alarm of arbitrary shape, the perimeter alarm is security protection
Device refers to that illegal invasion, theft, destruction and robbery to region of setting up defences etc. carry out Detection And Warning effective in real time.Secondly, institute
State safety device is not influenceed by factors such as landform, ground unevennesses, is constructed simpler;Its detectivity is not by moist, temperature
The influence of the weather such as degree, sleet, supports all weather operations, and adaptive capacity to environment is stronger.Again, the cost of the erecting device compared with
It is low, it is adapted to large-scale promotion.Finally, completely without source outside the embedded safety device room of two passage, anti-monitoring capability is extremely strong, will not
The overall aesthetics of welding or building.
In such scheme, alarm is carried out to recognition result can also be using other schemes, optionally, the master controller
104 I/O interface is connected with relay board 112, and the control relay plate 112 for the state of output control relay plate 112 is believed
Number, the relay board 112 is connected with switch 114, for the state of controlling switch 114.The switch 114 can be with others
Alarm module is connected, and such as switch 114 is connected with buzzer.When 104 pairs of treated first electric signals of master controller and
Treated second electric signal carries out feature extraction and Intelligent Recognition, and master controller 104 identifies first telecommunications
Number or second electric signal be alarm signal, then master controller 104 by I/O interface to relay board 112 send closure letter
Number, the switch 114 being connected with relay board 112 is also closed therewith, and buzzer starts buzzing to remind the relevant personnel, there is invader
Invasion.When master controller 104 identifies that first electric signal or second electric signal are noise signal, then master controller
104 do not make a response.It will be understood by those skilled in the art that other type of alarms can be buzzer and indicator lamp 111
Buzzing or flicker are carried out simultaneously, alarm module can also be alarm.
In such scheme, the electronic signal processing module 103 is that the first electric signal and the second electric signal are processed
To obtain high-quality detectable signal, the signal of same frequency is such as obtained, herein, there is provided a kind of voltage signal processing module
Preferred scheme (as shown in Figure 2 a), specifically, the electronic signal processing module 103 includes the first AC signal separative element, the
One signal condition unit, the first direct current signal separative element, secondary signal conditioning unit, the second AC signal separative element,
Three signal condition units, the second direct current signal separative element and the 4th signal condition unit;
The first AC signal separative element, for the AC signal in first electric signal to be separated;Institute
State the first signal condition unit to be connected with the first AC signal separative element, for being isolated from the first electric signal to described
AC signal is nursed one's health;The first direct current signal separative element, for the direct current signal in first electric signal to be divided
Separate out and;The secondary signal conditioning unit is connected with the first direct current signal separative element, for described from the first electric signal
In the direct current signal isolated nursed one's health;
The second AC signal separative element, for the AC signal in second electric signal to be separated;Institute
State the 3rd signal condition unit to be connected with the second AC signal separative element, for being isolated from the second electric signal to described
AC signal is nursed one's health;The second direct current signal separative element, for the direct current signal in second electric signal to be divided
Separate out and;4th signal condition unit is connected with the second direct current signal separative element, for described from the second electric signal
In the direct current signal isolated nursed one's health.
It is direct current signal or AC signal by by first voltage signal or second voltage Signal separator, by what is obtained
Direct current or AC signal are nursed one's health by signal condition unit again, can obtain high-quality detectable signal.
In such scheme, in order to ensure that the light source 106 has the operating temperature of stabilization, the safety device also sets up
There is temperature control circuit board, the output end of the temperature control circuit board is connected with the input of the light source 106, for adjusting light source 106
Temperature operationally.The safety device also includes power supply 113, for the temperature control circuit board 107 and the light control plate
105 power supplies.The safety device also includes serial ports and network interface.
Herein, there is provided a kind of preferred scheme of master controller 104, the master controller 104 is STM32F107.
STM32F107 is a property during STMicw Electronics releases brand-new STM32 interconnected types (Connectivity) Series of MCU
Can stronger product, various High performance industrial standard interfaces of this integrated chip, and STM32 different models product is in pin and software
It is upper that there is perfect compatibility, can easily adapt to more applications.The standard peripherals of new STM32 include 10 timers, two
Individual 12 1-Msample/s AD (analog-digital converter) (2M sample/s under quick alternate mode), two 12 DA (digital-to-analogues turn
Parallel operation), two I2C interfaces, five USART interfaces and three SPI ports and high-quality digital audio interface IIS, in addition
STM32F107 possesses full speed USB (OTG) interface, two-way CAN2.0B interfaces, and Ethernet 10/100MAC modules.This chip
Industry, medical treatment, building automatic, home audio and household electrical appliances market multiple product demand can be met.
Herein, there is provided a kind of cooling piece control chip ADN8830 of preferred temperature control circuit board 107.The ADN8830 is
The cooling piece control chip of Analog Device companies production, with advantages below:High efficiency, small size, low noise:FET electricity
Flow liner ripple is less than 0.5%, long-term temperature stability ± 0.01 DEG C, temperature indicate lock, temperature monitoring output, oscillator synchronization with
And year external signal, phase adjustment be multipoint controller, the frequency of programmable switch 114 up to 1MHz, thermistor fault alarm,
The advantages of maximum voltage refrigeration voltage can control.
Embodiment two
Fig. 3 is that the embodiment of the present invention two provides a kind of light path principle figure of the embedded safety device of two passages, such as Fig. 3 institutes
Show, light path device includes that light source 1, PIN photodiode 2, fiber coupler 3, ring retard 4, faraday rotation mirror 5, optical fiber connect
Wiring;
The light source 1 is provided for first optical fiber flange 109 and the second optical fiber flange 110 of the embedded safety device of two passages
Light source 106;The PIN photodiode 2 respectively with the first phototriode 101 of the embedded safety device of two passages and
Two phototriodes 102 are connected;Light source 1 and PIN photodiode 2 connect the input of fiber coupler 3, fiber coupler 3
Connection time delay ring 4, the output end of fiber coupler 3 is connected with vibration optical cable, and vibration optical cable end is connected with faraday rotation mirror 5.
Analyze the light path of light path:
(1) 1-3-4-3-5-3-4-3- detections
(2) 1-3-4-3-5-3------ detections
(3) 1-3------5-3-4-3- detections
(4) 1-3------5------3- detections
Wherein there was only (2) and (3) road light beam can produce interference, and remaining two-way forms direct current optical signal.Realized from light path
Angle considers, because Low coherence laser its coherence length is only tens microns, in order to reach interference effect, it is necessary to by light path
Error in length is controlled within coherence length.This light path interference light path is symmetrical structure, therefore without being required when light path is made
Light path is strictly equal.The stability of light path is so also increased from the angle for making light path.The light path part of the present apparatus is using low
Coherence length laser as light source 106, the optical interference circuit structure unified using vibration signal arm, reference arm, to temperature change, partially
Change and the phase place change of shaking are insensitive
The sensing part of optical fiber perimeter warning system is optical cable, can by its quick sensing to motion, pressure and vibration
It is monitored with to the behavior such as climbing, shearing, walk.Vibration optical fiber has special core layer and special book jacket, Neng Goubao
Card is normal using without being influenceed by outside climatic and adverse circumstances.When optical signal is conveyed into optical fiber, systems soft ware detector
The phase of the optical signal for receiving can be processed, when vibration optical fiber is disturbed by motion or vibration, the transmission mode of optical signal
Will change.
Here, PIN photodiode is plug-in PIN pipe c-types, the plug-in PIN pipes c-type uses InGaAs planar junctions
Structure PIN photoelectric detector;Across hindering, adjustable, noise is low, sensitivity is high, air-tightness good;The use of optical source wavelength scope is 1100-
1650nm;100% high temperature storage, low temperature storage, high temperature voltage ageing, temperature cycles, online temperature parameter test experiments;Work
Temperature range is -50-70 DEG C;Storage temperature range is -55-85 DEG C.
The present invention uses optical fiber as sensing and transmitting two-in-one device, using fiber-optic vibration interference technique to optical fiber
Various disturbances continue and monitoring in real time.The present invention provide the embedded safety device small volume of two passages, can independently grasp
Make, therefore be easy to hidden installation, security optical fiber can be directly anchored to the earth's surface fence such as wire netting, fence, enclosure wall, or be embedded in
Lawn, sandy gravel stratum, floor tile, floor, cement flooring, normal soil are even under water.The flexile mode of deploying to ensure effective monitoring and control of illegal activities can deploy troops on garrison duty
In the range of formed it is hidden, without dead angle, comprehensive barrier, without any blind spot, any factor leading to social instability is not all can multiply it for system
Machine.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.