CN106454274B - A kind of surveillance camera system adapting to particular surroundings - Google Patents
A kind of surveillance camera system adapting to particular surroundings Download PDFInfo
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- CN106454274B CN106454274B CN201611073817.7A CN201611073817A CN106454274B CN 106454274 B CN106454274 B CN 106454274B CN 201611073817 A CN201611073817 A CN 201611073817A CN 106454274 B CN106454274 B CN 106454274B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
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Abstract
A kind of surveillance camera system adapting to particular surroundings, comprising: infrared image acquisition module, visible images acquisition module, drive module and processing module with low-temperature resistance and anti-radiation characteristic；Infrared image acquisition module is connect with drive module signal, and infrared image is sent to processing module for driving infrared image acquisition module to acquire infrared image by drive module；Visible images acquisition module is connect with processing module signal, and processing module is for driving visible images acquisition module acquisition visible images, being pre-processed to infrared image and visible images and be correspondingly processed according to the instruction that drive module issues to infrared image and visible images.The surveillance camera system of the application have infrared and visible light simultaneously imaging capability, dynamic camera and static ability of taking pictures, from exposure capability, compression of images ability and the ability worked normally under low temperature, intense radiation conditions.
Description
Technical field
The present invention relates to surveillance camera technical fields, and in particular to a kind of surveillance camera system for adapting to particular surroundings
System.
Background technique
Traditional monitoring camera system is usually single-range visible light camera system or infrared camera system, it is seen that light
Although camera system technology maturation, the picture quality of acquisition are high, it can only be imaged under the conditions of illumination is preferable, for low light
According to or shadow region basically can not obtain the image information of high quality；Although and infrared imaging system is due to sensor and detection
The influence of the objective condition such as background, the picture quality that the picture quality of acquisition does not have visible light to obtain under good illumination condition
Height, but when to remote, low illumination or shadow region imaging, the infrared image quality of acquisition is better than visible images.It passes simultaneously
The monitoring camera of system is comparatively poor to working environment adaptability, especially under conditions of low temperature or intense radiation, passes
The monitoring camera of system can not normally obtain image information.
Summary of the invention
For the deficiency of conventional surveillance systems under particular surroundings itself, the application provides a kind of monitoring for adapting to particular surroundings
Camera chain, comprising: infrared image acquisition module, visible images acquisition module with low-temperature resistance and anti-radiation characteristic,
Drive module and processing module；
Infrared image acquisition module is connect with drive module signal, and drive module is for driving infrared image acquisition module to adopt
Collect infrared image, and infrared image is sent to processing module；
Visible images acquisition module is connect with the processing module signal, and processing module is for driving the visible light figure
As acquisition module acquisition visible images, infrared image and visible images are pre-processed and issued according to drive module
Instruction be correspondingly processed to infrared image and visible images.
In a kind of embodiment, infrared image acquisition module includes infrared optical lens and infrared sensor；
The infrared optical lens and infrared sensor all have low-temperature resistance and anti-radiation characteristic, infrared optical lens, red
Sequentially signal connects outer sensor with drive module.
In a kind of embodiment, it is seen that light image acquisition module includes visible light optical camera lens and visible light sensor；
Visible light optical camera lens and visible light sensor all have low-temperature resistance and anti-radiation characteristic；Visible light optical camera lens,
Visible light sensor is connected with processing module sequential signal.
In a kind of embodiment, further includes the first Acquisition Circuit for acquiring the focal plane temperature of infrared sensor and be used for
The output end of second Acquisition Circuit of acquisition environment temperature, the first Acquisition Circuit and the second Acquisition Circuit is coupled respectively to driving mould
Block；
Drive module is used for the focal plane temperature according to focal plane temperature and environment temperature adjustment infrared sensor；
Drive module is also used to for environment temperature being sent to processing module, and processing module is used for according to environment temperature to infrared
The heterogeneity of image is corrected.
In a kind of embodiment, drive module includes the A/D converter and the first FPGA with low-temperature resistance and anti-radiation characteristic；
The input terminal of A/D converter and the output end signal of infrared sensor connect, the output end of A/D converter and first
The input end signal of FPGA connects；
First FPGA is used to read in and store the image data of the infrared image sampled in A/D converter, is also used to figure
As data are ranked up and are converted into input processing module after serial data is compressed.
In a kind of embodiment, processing module includes having low-temperature resistance and doing the dsp processor and the 2nd FPGA of radiation characteristic；
2nd FPGA is connect for being configured by parameter of the spi bus interface to visible light sensor by clock
8 channel parallel datas of mouth control visible light sensor output visible images, are also used to carry out serial data and parallel data
Pretreatment, and pretreated data are sent to dsp processor.
In a kind of embodiment, the 2nd FPGA serial data is pre-processed successively include: formatting, noise filtering,
Nonuniformity Correction, blind element compensation, dynamic range compression.
In a kind of embodiment, it includes: to visible light sensor that the 2nd FPGA, which is configured the parameter of visible light sensor,
Electron gain, pixel integration time, output image size, output picture position and output image frame per second be configured respectively.
In a kind of embodiment, it successively includes: that black level extracts, number increases that the 2nd FPGA, which pre-processes parallel data,
Benefit, bad point correction, edge detection, gamma correction, data flow output, BT.1120 are formatted.
In a kind of embodiment, infrared sensor is non-refrigeration type infrared sensor.
According to the surveillance camera system of above-described embodiment, due to will be seen that optical sensor and infrared sensor are integrated in together
In one system, monitoring objective two waveband is imaged simultaneously, can make full use of visible light sensor and infrared sensor respectively
The advantages of realize monitoring to monitoring objective whole day, the surveillance camera system of the application is also equipped with dynamic camera and static state is taken pictures
Function can select different operating modes according to actual needs, applied widely, in addition, the surveillance camera system of the application
System has very strong low-temperature resistance and capability of resistance to radiation, adapts to special working environment, is also equipped with compression of images ability, Neng Gouyou
Effect mitigates big data quantity acquisition storage to the burden of transmission.
Detailed description of the invention
Fig. 1 is the functional block diagram of the surveillance camera system of the application；
Fig. 2 is the functional block diagram of drive module；
Fig. 3 is the functional block diagram of processing module；
Fig. 4 is the surveillance camera system of the application and the connection schematic diagram of controlling terminal.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.
This example provides a kind of surveillance camera system for adapting to particular surroundings, and schematic diagram is as shown in Figure 1, comprising: has
The infrared image acquisition module 1 of low-temperature resistance and anti-radiation characteristic, visible images acquisition module 2, drive module 3 and processing module
4。
Infrared image acquisition module 1 is connect with 3 signal of drive module, and drive module 3 is for driving infrared image acquisition mould
Block 1 acquires infrared image, and infrared image is sent to processing module 4；Visible images acquisition module 2 and processing module 4 are believed
Number connection, processing module 4 for drive visible images acquisition module 2 acquire visible images, to infrared image and visible light
Image is pre-processed and is correspondingly processed according to the instruction that drive module 3 issues to infrared image and visible images.
Further, infrared image acquisition module 1 includes infrared optical lens 11 and infrared sensor 12；Infrared optical lens
11 and infrared sensor 12 all have low-temperature resistance and anti-radiation characteristic, infrared optical lens 11, infrared sensor 12 and driving mould
Sequentially signal connects block 3.
Further, it is seen that light image acquisition module 2 includes visible light optical camera lens 21 and visible light sensor 22；Visible light
Optical lens 21 and visible light sensor 22 all have low-temperature resistance and anti-radiation characteristic；Visible light optical camera lens 21, visible light pass
Sensor 22 is connected with 4 sequential signal of processing module.
Further, the surveillance camera system of this example further includes for acquiring the focal plane temperature of infrared sensor 12
One Acquisition Circuit 5 and the second Acquisition Circuit 6 for acquiring environment temperature, the first Acquisition Circuit 5 and the second Acquisition Circuit 6 it is defeated
Outlet is coupled respectively to drive module 3；Drive module 3 is used to adjust infrared sensor 12 according to focal plane temperature and environment temperature
Focal plane temperature；Drive module 3 is also used to for environment temperature being sent to processing module 4, and processing module 4 is used for according to environment temperature
Degree is corrected the heterogeneity of infrared image.
Specifically, drive module 3 include have low-temperature resistance and anti-radiation characteristic A/D converter 31 and the first FPGA32,
Signal filtering and amplifying circuit 33, bias-voltage generating circuit 34 and digital driver circuitry 35, functional block diagram is as shown in Figure 2；
Wherein, the input terminal of signal filtering and amplifying circuit 33 is coupled to the output end of infrared sensor 12, signal filtering and amplification electricity
The output end on road 33 is coupled to the input terminal of A/D converter 31, and the output end of A/D converter 31 is coupled to the defeated of the first FPGA32
Enter end；The output end of bias-voltage generating circuit 34 and digital driver circuitry 35 is coupled respectively to the input of infrared sensor 12
End.
Firstly, various different accuracies and noise requirements needed for generating infrared sensor 12 as bias-voltage generating circuit 34
Analog bias voltage, digital driver circuitry 35 generate infrared sensor 12 needed for driving signal, infrared sensor 12 obtain
Analog signal is exported after correct driving signal, which is transmitted to A/D converter after filtering and amplifying circuit 33
In 31, the digital signal after converting to A/D converter 31 is sampled, picture number of the first FPGA32 to the infrared image of sampling
According to being read out and storing, then, the first FPGA32 is ranked up the image data of storage and by the image data after sequence
It is converted into serial data, will be input in processing module 4 after serial data compression.
It is influenced since variation of ambient temperature has the heterogeneity of infrared image, first Acquisition Circuit 5 of this example will adopt
The focal plane temperature of the infrared sensor 12 of collection is sent to the first FPGA32 after A/D is converted, and the second Acquisition Circuit 6 is by acquisition
Ambient temperature data is also sent to the first FPGA32 after A/D is converted, and the first FPGA32 carries out temperature control by focal plane
Improve variation of ambient temperature to the heteropical influence of infrared image, e.g., the first FPGA32 is flat using corresponding strategy focusing
Face temperature is adjusted, meanwhile, ambient temperature data is sent to processing module 4 by the first FPGA32, and processing module 4 is according to environment
Temperature data is corrected the heterogeneity of infrared image.
Wherein, the second Acquisition Circuit 6 includes temperature detecting resistance 61 and thermometric voltage 62, and the output end of temperature detecting resistance 61 is coupled to
The resistance value that temperature detecting resistance 61 measures is converted voltage value, thermometric voltage 62 by the input terminal of thermometric voltage 62, thermometric voltage 62
Output end be coupled to the input terminal of A/D converter, the output end of A/D converter is coupled to the first FPGA32.
The processing module 4 of this example includes having low-temperature resistance and doing the dsp processor 41 and the 2nd FPGA42 of radiation characteristic；Place
Managing module 4 further includes that DDR2, FLASH, PHY, PROM and corresponding periphery configuration circuit, functional block diagram are as shown in Figure 3.
Wherein, the 2nd FPGA42 by parameter of the spi bus interface to visible light sensor 22 for being configured, and is led to
Oversampling clock Interface Controller visible light sensor 22 exports 8 channel parallel datas of visible images, is also used to serial data and simultaneously
Row data are pre-processed, and pretreated data are sent to dsp processor 42；Wherein, the 2nd FPGA42 is to serial number
It successively include: formatting, noise filtering, Nonuniformity Correction, blind element compensation, dynamic range compression according to being pre-processed, the
It includes: long-pending to the electron gain of visible light sensor 22, pixel that two FPGA42, which are configured the parameter of visible light sensor 22,
Between timesharing, output image size, output picture position and output image frame per second be configured respectively, the 2nd FPGA42 to and line number
It successively include: that black level extraction, digital gain, bad point correction, edge detection, gamma correction, data flow are defeated according to being pre-processed
Out, BT.1120 is formatted.
Signal connects between 2nd FPGA42 and the first FPGA32, and the first FPGA32 is by infrared picture data and temperature data
Be sent to the 2nd FPGA42 after compression, the 2nd FPGA42 respectively to the serial data of infrared image and visible images and line number
According to dsp processor 41 is sent to after making above-mentioned pretreatment, when the first FPGA32 receives the process instruction of the transmission of controlling terminal 7
Afterwards, the first FPGA32 process instruction is sent to the 2nd FPGA42, which is sent to dsp processor by the 2nd FPGA42
41, dsp processor 41 manages instruction according to this and treated visible light and infrared data is carried out to returning to after compressed encoding the
Two FPGA42, the 2nd FPGA42 will be seen that light and infrared data are sent to controlling terminal 7, meanwhile, it can be to by controlling terminal 7
First FPGA32 sends operating mode instruction, exposure instruction etc., and the first FPGA32 controls infrared optics mirror according to corresponding instruction
Connection schematic diagram such as Fig. 4 institute of first 11 operating mode and exposure capability, controlling terminal surveillance camera system and controlling terminal
Show.
The infrared sensor 12 of this example is non-refrigeration type infrared sensor, and the UL04371 for being particularly preferred as Ulis company is non-
Refrigeration mode infrared sensor, it is seen that optical sensor 22 is preferably the CMV4000, the first FPGA32 and second of CMOSIS company
FPGA42 is both preferably the XQR4V5X55 of Xilinx company, and A/D converter 31 is preferably AD9240.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (5)
1. a kind of surveillance camera system for adapting to particular surroundings characterized by comprising have low-temperature resistance and anti-radiation characteristic
Infrared image acquisition module, visible images acquisition module, drive module and processing module；
The infrared image acquisition module is connect with drive module signal, and the drive module is for driving the infrared image to adopt
Collect module and acquire infrared image, and the infrared image is sent to the processing module；Specifically, the infrared image acquisition
Module includes infrared optical lens and infrared sensor, and the infrared optical lens and infrared sensor all have low-temperature resistance and resist
Radiation characteristic, sequentially signal connects for the infrared optical lens, infrared sensor and drive module；
The visible images acquisition module is connect with the processing module signal, and the processing module is described visible for driving
Light image acquisition module acquisition visible images pre-process the infrared image and visible images and according to described
The instruction that drive module issues is correspondingly processed to the infrared image and visible images；Specifically, the visible light figure
As acquisition module includes visible light optical camera lens and visible light sensor；The visible light optical camera lens and visible light sensor are equal
With low-temperature resistance and anti-radiation characteristic；The visible light optical camera lens, visible light sensor are connected with processing module sequential signal；
It further include the first Acquisition Circuit for acquiring the focal plane temperature of the infrared sensor and for acquiring environment temperature
The second Acquisition Circuit, the output end of first Acquisition Circuit and the second Acquisition Circuit is coupled respectively to the drive module；
The drive module includes the A/D converter with low-temperature resistance and anti-radiation characteristic, the first FPGA, signal filtering and amplification
Circuit, bias-voltage generating circuit and digital driver circuitry, in which:
The simulation biasing of various different accuracies and noise requirements needed for the bias-voltage generating circuit generates infrared sensor
Voltage, driving signal needed for the digital driver circuitry generates infrared sensor；The infrared sensor, which obtains, correctly to be driven
Analog signal is exported after dynamic signal, which is transmitted in A/D converter after filtering and amplifying circuit, and described first
FPGA reads in and stores the image data of the infrared image sampled in the A/D converter, be also used to described image data into
Row sorts and inputs the processing module after being converted into serial data compression；
And the focal plane temperature of the infrared sensor of acquisition is sent to described by first Acquisition Circuit after A/D is converted
The ambient temperature data of acquisition is also sent to the first FPGA, institute by one FPGA, second Acquisition Circuit after A/D is converted
State the focal plane temperature that the first FPGA is also used to adjust the infrared sensor according to the focal plane temperature and environment temperature；Institute
It states the first FPGA and is also used to for the environment temperature being sent to the processing module, the processing module is used for according to the environment
Temperature is corrected the heterogeneity of the infrared image；
The processing module includes the dsp processor and the 2nd FPGA with low-temperature resistance and anti-radiation characteristic；
2nd FPGA by parameter of the spi bus interface to the visible light sensor for being configured, and when passing through
Visible light sensor described in clock Interface Controller exports 8 channel parallel datas of the visible images, is also used to the serial number
It is pre-processed according to parallel data, and pretreated data is sent to the dsp processor.
2. surveillance camera system as described in claim 1, which is characterized in that the 2nd FPGA to the serial data into
Row pretreatment successively includes: formatting, noise filtering, Nonuniformity Correction, blind element compensation, dynamic range compression.
3. surveillance camera system as claimed in claim 2, which is characterized in that the 2nd FPGA is to the visible light sensing
The parameter of device be configured include: the electron gain to the visible light sensor, pixel integration time, output image size,
Output picture position and output image frame per second are configured respectively.
4. surveillance camera system as claimed in claim 3, which is characterized in that the 2nd FPGA to the parallel data into
Row pretreatment successively include: black level extractions, digital gain, bad point correction, edge detection, gamma correction, data flow export,
BT.1120 is formatted.
5. surveillance camera system as claimed in claim 4, which is characterized in that the infrared sensor is that non-refrigeration type is infrared
Sensor.
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| CN108007228A (en) * | 2017-12-14 | 2018-05-08 | 合肥金星机电科技发展有限公司 | The field visualized monitoring system of kiln temperature |
| CN111147700A (en) * | 2018-11-02 | 2020-05-12 | 南昌欧菲光电技术有限公司 | Camera device and intelligent terminal |
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