CN105933662A - Active infrared monitoring system based on optical fiber energy transmission - Google Patents
Active infrared monitoring system based on optical fiber energy transmission Download PDFInfo
- Publication number
- CN105933662A CN105933662A CN201610374106.7A CN201610374106A CN105933662A CN 105933662 A CN105933662 A CN 105933662A CN 201610374106 A CN201610374106 A CN 201610374106A CN 105933662 A CN105933662 A CN 105933662A
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- Prior art keywords
- optical
- optical fiber
- monitoring system
- processor
- active infrared
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/33—Transforming infrared radiation
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention provides an active infrared monitoring system based on optical fiber energy transmission. The monitoring system comprises a center base station (1), an optical fiber channel (2), and a far-end unit (3); the center base station (1) comprises a laser (4), an optical receiving module (12) and an upper computer (13), the far-end unit (3) comprises an optical splitter (5), a photovoltaic cell (6), a projection lens (7), a power source management unit (8), a camera module (9), a processor (10) and an optical sending module (11). The active infrared monitoring system based on optical fiber energy transmission provided by the invention is used for providing an electromagnetic interference resistant energy supply mode for remote monitoring under changeable weather and severe environment through the optical fiber energy transmission so as to obtain the stable and safe all-weather infrared video monitoring. On the other hand, the infrared laser required for active lighting is concurrently transmitted in energy transmission, the projection is performed at the far-end unit (3) through the projection lens (7) so as to provide laser lighting with better directivity for the night vision monitoring.
Description
Technical field
The present invention relates to optical fiber and pass energy technical field, particularly relate to a kind of active infrared monitoring passing energy based on optical fiber
System.
Background technology
In recent years, monitoring technology, through constantly developing, is just playing more and more heavier in each field of productive life
The effect wanted.Video monitoring system is the ideal tools of management personnel's management with high quality, is also public safety, prevents
Steal and take precautions against requisite competent assistant.Utilize it can greatly reduce unnecessary manpower, monitor visual in real time
Region, controls on-the-spot real work present situation, all things that reflection real-time is occurred, it is simple to manager
Deal with process accident etc. in time.
Wherein, Infrared Monitor System, because possessing the ability of night vision observation, becomes the optimum selection of round-the-clock monitoring
One of.Infrared monitoring is divided into again passive infrared monitoring to monitor with active infrared, and passive infrared monitoring technology is without borrowing
Help infrared lamp, mainly utilize people or object because own temperature is different outwards infrared radiation strong and weak different former
Reason, is converted to video image by the temperature distribution image of monitoring objective；Active infrared monitoring technology then utilizes spy
The infrared light luminous source of system produces that human eye is invisible and infra-red radiation that video camera can capture, and then by low photograph
The infrared light that surrounding objects is reflected back experienced by degree video camera, thus realizes night vision function.Compared to passive infrared
Monitoring technology, active infrared monitoring anti-interference is higher, and detection range is farther, thus application is the most extensive.
Along with the progress of various monitorings Yu sensing technology, the supply of system work capacity becomes its system and extends
Conditionality factor with functional realiey.Particularly under the occasion that environmental requirement is special, the electric power of system work supplies
Should have difficulties, there is electromagnetic interference in such as high voltage, high-intensity magnetic field to conventional powerline, and inflammable and explosive
Under environment, electric spark then can cause catastrophic effect.In order to overcome a supply of electric power difficult problem, research worker have studied
All multi-methods, as wireless electromagnetic pass can, sound wave pass can, solar powered and high capacity cell powers, so
And above-mentioned technology still exists significant limitation, such as electromagnetic environment produces interference, too to radio, sound wave
Sun can be limited by atmospheric environment, and battery exists life problems etc..Therefore, in the situation that these environmental requirements are special
Under, need a kind of stable, safety and can the supply of electric power mode of electromagnetism interference, round-the-clock infrared to realize
Monitoring.
Summary of the invention
It is an object of the invention to provide a kind of Active Infrared Monitoring System passing energy based on optical fiber, utilize light splitting
Design, passes optical fiber and can combine with optical fiber biography light, provide Infrared irradiation for monitoring unit, it is achieved special
Stable, safety and can the remote distance power supply of electromagnetism interference under environment.
For achieving the above object, the technical scheme is that
The Active Infrared Monitoring System of energy is passed, including center base station and far-end unit, described center base based on optical fiber
Station includes that laser instrument, Optical Receivers and host computer, described far-end unit include beam splitter, photovoltaic cell, throwing
Penetrate lens, Power Management Unit, camera module, processor and optical transmission module, described laser emitting
Iraser；Described beam splitter is connected with laser instrument, and iraser is divided into biography energy laser and infrared illumination；
Described projection lens is positioned at beam splitter infrared illumination optical transport afterbody；Described photovoltaic cell is positioned at beam splitter and passes and can swash
Optical transport afterbody；Described Power Management Unit is connected with photovoltaic cell, and is camera module, processor and light
Sending module carries out energy supply；Infrared image is acquired by described camera module, and view data is sent out
Deliver to processor；Described processor is loaded onto optical transmission module by after Image Data Compression.
Further, also include optical-fibre channel, center base station by optical-fibre channel transmit light energy to far-end unit,
Receive the view data of far-end unit simultaneously.
Further, described laser emitting laser, by optical-fibre channel transmission to beam splitter light splitting, a part
Laser to projection lens, another part laser to photovoltaic cell, through Power Management Unit distribution to camera module,
Processor and optical transmission module；Destination image data is acquired by camera module, and sends it to process
Device, processor to its compress after be loaded onto optical transmission module, optical transmission module with optical signal form by view data
Reaching Optical Receivers, Optical Receivers reaches host computer after receiving and shows.
Further, the projecting direction of described projection lens is consistent with the collection direction of camera module, angle of flare
Not less than acquisition field of view angle.
Further, described processor includes single-chip microcomputer or programmable logic array.
Further, the electrical signal of described photovoltaic cell connects with total electricity input of Power Management Unit
Connect.
Further, the light transmission rate of described optical transmission module is more than acquisition rate and the process of camera module
The transfer rate of device.
Further, described host computer has video and preserves function, is used for receiving monitoring image and showing.
Compared with prior art, the invention have the benefit that the master passing energy based on optical fiber provided by the present invention
Dynamic Infrared Monitor System passes energy by optical fiber, provides anti-electricity under unsettled with adverse circumstances for remote monitor
The energy resource supply mode of magnetic disturbance, is achieved stable, safe all-weather infrared video monitoring.On the other hand,
Iraser needed for passing active illumination while energy transmits in the lump, is entered by projection lens at far-end unit
Row projection, provides the more preferable laser lighting of directivity for night vision monitoring.Such optical fiber is used to pass light mode,
It is not required at video monitoring equipment drive LED active illumination by electro-optic conversion, thus reduces optical fiber energy supply
The power consumption of far-end unit.
Accompanying drawing explanation
Fig. 1 is monitoring system overall structure schematic diagram of the present invention；
Fig. 2 is monitoring system structured flowchart of the present invention；
Fig. 3 is the functional block diagram of monitoring system optical fiber energy supply of the present invention and illumination part；
Fig. 4 is the functional block diagram of monitoring system video capture and transport part of the present invention.
Description of reference numerals:
1-center base station；2-optical-fibre channel；3-far-end unit；4-laser instrument；5-beam splitter；6-photovoltaic cell；
7-projection lens；8-Power Management Unit；9-camera module；10-processor；11-optical transmission module；12-
Optical Receivers；13-host computer.
Detailed description of the invention
Below by specific embodiment, the present invention is further illustrated, but it should explanation, these are implemented
Mode is not limitation of the present invention, and those of ordinary skill in the art are according to these embodiment institute works
Equivalent transformation in energy, method or structure or replacement, within being included in protection scope of the present invention.
Fig. 1 is that the present invention passes the Active Infrared Monitoring System overall structure schematic diagram of energy based on optical fiber.This monitoring system
System includes center base station 1, optical-fibre channel 2, far-end unit 3 three parts.Center base station 1 one aspect is passed through
Optical-fibre channel 2 transmits light energy provides energy resource supply, supplementary lighting sources to supply for far-end unit 3, on the other hand,
Receive the view data that far-end unit 3 is collected, and show in real time.
Fig. 2 is the structured flowchart that the present invention passes the Active Infrared Monitoring System of energy based on optical fiber, center base station 1
Including laser instrument 4, Optical Receivers 12 and host computer 13.Far-end unit 3 includes beam splitter 5, photovoltaic
Battery 6, projection lens 7, Power Management Unit 8, camera module 9, processor 10 and light send mould
Block 11.
Iraser is divided into the biography can laser and infrared illumination by beam splitter 5 by far-end unit 3 one aspect；Separately
On the one hand it is responsible for gathering, transmitting monitoring image, passes center base station 1 back through optical-fibre channel 2.
Wherein, the iraser of the certain power of laser instrument 4 outgoing, the fixed band iraser of its outgoing possesses
The feature of low-loss transmission in optical-fibre channel 2, output intensity size is by energy supply light, photograph needed for far-end unit 3
Mingguang City and loss determine.
Beam splitter 5, uses 1 × 2 design, and the iraser of laser instrument 4 outgoing is divided into biography energy laser with red
Outer illumination light.According to required illumination light and required energy supply light size, calculate splitting ratio.Infrared illumination light exit side
Connect with projection lens 7, pass and can connect photovoltaic cell 6 by laser emitting end.
Photovoltaic cell 6 is positioned at beam splitter 5 and passes energy Laser Transmission afterbody, carries out opto-electronic conversion, carries for follow-up system
Supply for electric energy.Photovoltaic cell 6, should possess thermal diffusivity good, can long-time stable work, photoelectric transformation efficiency
High.The stable electrical power that can be provided by after opto-electronic conversion should be greater than camera module 9, processor 10,
The maximum power dissipation that optical transmission module 11 works simultaneously.Photovoltaic cell 6 answer signal of telecommunication output pin and power supply pipe
Total electricity input of reason unit 8 connects.
Projection lens 7 is positioned at beam splitter 5 infrared illumination optical transport afterbody, carries out expanding scattering by iraser,
Infrared illumination is carried out for object.The projecting direction of projection lens 7 should gather direction with camera module 9 and keep
Unanimously, angle of flare should be not less than its acquisition field of view angle simultaneously, and exposing to brightness that target surface reflects should
The minimum brightness that can observe more than camera module 9.
Power Management Unit 8 connects with photovoltaic cell 6, and the electric energy that photovoltaic cell 6 is provided carry out voltage stabilizing,
Storage, and according to running voltage and interface needed for camera module 9, processor 10, optical transmission module 11,
Burning voltage is provided and mates connected mode.
Camera module 9 possesses infrared image acquisition ability, and can send view data to processor in real time
10.Need before the camera lens of camera module 9 to install sense infrared fileter additional, sensitive to projection iraser wave band, make
System can collect clear bright infrared monitoring and control image.Meanwhile, picture quality should be higher with transmission frame per second, with
Meet real-time monitoring condition.Camera module 9 is connected with processor 10 by the corresponding interface.
Processor 10, can use the device such as single-chip microcomputer, programmable logic array, to adopting of camera module 9
Collection process is driven, including pixel, frame per second and the setting of image output format.Simultaneously, it is provided that I/O interface
With transmission means, receive and gathered data, and be loaded onto optical transmission module 11.
Optical transmission module 11, the viewdata signal transmitted by processor 10 drives built-in laser instrument, with light
View data is passed back the Optical Receivers 12 of center base station 1 by signal form.Before light transmission rate should be greater than
Camera module 9 acquisition rate and processor 10 transfer rate, it is ensured that real-time Transmission.
Optical Receivers 12, transmission bandwidth need to mate with optical transmission module 11, gather more than camera module 9
With compression of images speed, transmit without delay to provide.After receiving the data, carry out low electro-optic conversion, and use
Reasonably communication modes, reaches host computer 13 by video information.
Host computer 13, is shown in software interface by the view data that Optical Receivers 12 is passed back, has simultaneously and regards
Frequency preserves function, can transfer whenever and wherever possible.On the other hand monitoring process is carried out management and control, can be real at software interface
The existing operation such as open, close, suspend, recovery.
Fig. 3 is the functional block diagram of optical fiber energy supply of the present invention and projection part, and Fig. 4 is video acquisition of the present invention and biography
The functional block diagram of defeated part.The iraser of the certain power of laser instrument 4 outgoing, passes at a distance through optical-fibre channel 2
Transport to beam splitter 5 light splitting, a part of iraser to exit lens 7, provide light filling illumination for monitoring objective.
Another part laser is to photovoltaic cell 6, after opto-electronic conversion, reaches Power Management Unit 8 in electrical signal form,
Distribute after the steps such as Power Management Unit 8 voltage stabilizing, impedance matching to camera module 9, processor 10 with
Optical transmission module 11, provides normal work institute subfam. Spiraeoideae for it.Camera module 9 processor 10 drive under,
Target is monitored in real time, and the data collected are reached processor 10 in electrical signal form, by place
Reason device 10 compress, be loaded onto optical transmission module 11, by through optical-fibre channel 2 long-distance transmissions to center base station 1,
Data signal is received by Optical Receivers 12 and carries out opto-electronic conversion, reaches host computer 13 real-time video and shows,
Complete to monitor in real time.
Above-mentioned listed a series of detailed description is only for the tool of the feasibility embodiment of the present invention
Body illustrates, they also are not used to limit the scope of the invention, and all is made without departing from skill of the present invention spirit
Equivalent implementations or change should be included within the scope of the present invention.
Claims (8)
1. pass the Active Infrared Monitoring System of energy based on optical fiber, including center base station (1) and far-end unit (3), its feature
Being, described center base station (1) includes laser instrument (4), Optical Receivers (12) and host computer (13), described far
End unit (3) includes beam splitter (5), photovoltaic cell (6), projection lens (7), Power Management Unit (8), shooting
Head module (9), processor (10) and optical transmission module (11), described laser instrument (4) outgoing iraser；Institute
State beam splitter (5) to be connected with laser instrument (4), and iraser is divided into biography energy laser and infrared illumination；Described
Projection lens (7) is positioned at beam splitter (5) infrared illumination optical transport afterbody；Described photovoltaic cell (6) is positioned at beam splitter (5)
Passing can Laser Transmission afterbody；Described Power Management Unit (8) is connected with photovoltaic cell (6), and is camera module
(9), processor (10) and optical transmission module (11) carry out energy supply；Described camera module (9) is to infrared figure
As being acquired, and view data is sent to processor (10)；Described processor (10) is by Image Data Compression
After be loaded onto optical transmission module (11).
The Active Infrared Monitoring System passing energy based on optical fiber the most according to claim 1, it is characterised in that also
Including optical-fibre channel (2), center base station (1) transmits light energy to far-end unit (3) by optical-fibre channel (2), with
Time by optical-fibre channel (2) receive far-end unit (3) view data.
The Active Infrared Monitoring System passing energy based on optical fiber the most according to claim 2, it is characterised in that institute
State laser instrument (4) outgoing iraser, transmitted to beam splitter (5) light splitting by optical-fibre channel (2), a part of infrared
Laser, to projection lens (7), another part iraser to photovoltaic cell (6), distributes through Power Management Unit (8)
To camera module (9), processor (10) and optical transmission module (11), camera module (9) is to view data
Being acquired and reach processor (10), processor (10) is loaded onto optical transmission module (11), light after compressing it
View data is reached Optical Receivers (12) with optical signal form by sending module (11), and Optical Receivers (12) connects
Host computer (13) display is reached after receipts.
The Active Infrared Monitoring System passing energy based on optical fiber the most according to claim 1, it is characterised in that institute
The projecting direction stating projection lens (7) is consistent with the collection direction of camera module (9), and angle of flare is not less than gathering
The angle of visual field.
The Active Infrared Monitoring System passing energy based on optical fiber the most according to claim 1, it is characterised in that institute
State processor (10) and include single-chip microcomputer or programmable logic array.
The Active Infrared Monitoring System passing energy based on optical fiber the most according to claim 1, it is characterised in that institute
Total electricity input of the electrical signal and Power Management Unit (8) of stating photovoltaic cell (6) is connected.
The Active Infrared Monitoring System passing energy based on optical fiber the most according to claim 1, it is characterised in that institute
The light transmission rate stating optical transmission module (11) is more than acquisition rate and the biography of processor (10) of camera module (9)
Transmission rate.
The Active Infrared Monitoring System passing energy based on optical fiber the most according to claim 1, it is characterised in that institute
State host computer (13) to be used for receiving display monitoring image and there is video preserving function.
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| CN201610374106.7A CN105933662B (en) | 2016-05-31 | 2016-05-31 | The Active Infrared Monitoring System of energy is passed based on optical fiber |
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| CN201610374106.7A CN105933662B (en) | 2016-05-31 | 2016-05-31 | The Active Infrared Monitoring System of energy is passed based on optical fiber |
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Cited By (1)
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| CN111279675A (en) * | 2017-11-09 | 2020-06-12 | 株式会社电装 | State detection device |
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| CN105933662B (en) | 2019-01-01 |
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Inventor after: Wang Jin Inventor after: Li Qi Inventor after: Lu Yunqing Inventor after: Zhang Yunshan Inventor after: Xue Jiping Inventor after: Xue Chi Inventor after: Cao Shanshan Inventor before: Wang Jin Inventor before: Li Qi Inventor before: Lu Yunqing Inventor before: Zhang Yunshan |
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Effective date of registration: 20171211 Address after: Yuen Road Ya Dong Qixia District of Nanjing City, Jiangsu province 210023 New District No. 9 Applicant after: Nanjing Post & Telecommunication Univ. Applicant after: Zhongtian Technologies Fiber Optics Co., Ltd. Address before: Yuen Road Qixia District of Nanjing City, Jiangsu Province, No. 9 210023 Applicant before: Nanjing Post & Telecommunication Univ. |
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Address after: 210003 new model road 66, Gulou District, Nanjing, Jiangsu Applicant after: Nanjing Post & Telecommunication Univ. Applicant after: Zhongtian Technologies Fiber Optics Co., Ltd. Address before: 210023 9 Wen Yuan Road, Ya Dong new town, Qixia District, Nanjing, Jiangsu. Applicant before: Nanjing Post & Telecommunication Univ. Applicant before: Zhongtian Technologies Fiber Optics Co., Ltd. |
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