CN104079809A - Underwater high-definition photographic system for deep sea - Google Patents
Underwater high-definition photographic system for deep sea Download PDFInfo
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- CN104079809A CN104079809A CN201410332027.0A CN201410332027A CN104079809A CN 104079809 A CN104079809 A CN 104079809A CN 201410332027 A CN201410332027 A CN 201410332027A CN 104079809 A CN104079809 A CN 104079809A
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Abstract
The embodiment of the invention discloses an underwater high-definition photographic system for a deep sea. The underwater high-definition photographic system comprises pressure-resistant glass, a 16-mm fixed camera lens, an image collecting module, an image processing module, a power source management module and an interface, wherein the thickness of the pressure-resistant glass is 15 mm-20 mm, the fixed camera lens is arranged at the rear end of the pressure-resistant glass, the image collecting module is arranged at the rear end of the lens, the image processing module is arranged at the rear end of the image collecting module, the power source management module is arranged at the rear end of the image processing module, and the interface is formed in the rear end of the power source management module. The pressure-resistant glass, the lens, the image collecting module, the image processing module, the power source management module and the interface are packaged through a frame which is wholly sealed and resistant to pressure. Images are collected through a low-pressure-difference serial port of the MIPI interface and a backside-illuminated CMOS sensor, image quality can be better under the condition of insufficient light in the deep sea, and a towed body working in the deep sea can be higher in image collecting speed and anti-interference capacity when shaken violently in ocean currents.
Description
Technical field
The invention belongs to Digital image technology field, relate to especially a kind of deep-sea high definition photographic system under water.
Background technology
Deep-sea camera is to take geology for seabed and water, the camera of biology and marine stream state.At polymetallic nodules, very practical in the resource explorations such as manganese crust and massive sulphide.At present, deep-sea underwater camera is generally all below 1,000 ten thousand pixels, takes ccd image sensor to add DSP and processes.The voltage that ccd image sensor need to provide is many, whole circuit complexity, and power consumption is large, and it is slower to gather speed image, and meanwhile, ccd sensor shows poor in the low light level.
Nowadays along with developing rapidly of CMOS technology is universal, the continuous maturation of cmos circuit noise cancellation technology, the cmos image sensor of high density high-quality more and more enters actual use.And on the DVP parallel port adopting in camera for tradition, need PCLK under water, and VSYNC, HSYNC isochronon synchronizing signal coordinates transfer of data, and holding wire is many, disturbs greatlyr, and a little less than antijamming capability, restricted aspect signal integrity, speed is also restricted.
Therefore, for the above-mentioned defect existing in currently available technology, be in fact necessary to study, so that a kind of scheme to be provided, solve the defect existing in prior art, avoid causing the of poor quality and slow-footed problem of image transmitting of the bad situation hypograph of in deep-sea light.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of deep-sea high definition photographic system under water, carry out IMAQ for the employing back-illuminated type cmos sensor of low-voltage differential serial ports that adopts MIPI interface, the in the situation that of making in deep-sea insufficient light, have better picture quality and the towed body of working acutely rocks and can have IMAQ speed and stronger antijamming capability faster down in ocean current in deep-sea.
For achieving the above object, technical scheme of the present invention is:
A kind of deep-sea high definition photographic system under water, comprising:
Thickness is the withstand voltage glass of 15-20mm;
Be arranged on the 16mm cameras with fixed focus lens of withstand voltage glass rear end;
Be arranged on the image capture module of lens rear end, described image capture module is transferred to image processing module for the high pixel image processing information exchange collecting is crossed to MIPI-CSI2 interface;
Be arranged on the image processing module of image capture module rear end, described image processing module, for the raw image data receiving is processed and format conversion, converts PIG form to from the initial data of RGB888;
Be arranged on the power management module of image processing module rear end, for providing each required voltage of image processing module and VBAT Voltage-output to image capture module;
Being arranged on the interface of power management rear end, is the output of power supply, and the operating voltage of image capture module and pattern processing module is provided;
Wherein said withstand voltage glass, lens, image capture module, image processing module, power management module and interface adopt the withstand voltage framework encapsulation of integral sealing to arrange.
Preferably, described image capture module adopts the cmos sensor OV14810 that back-illuminated type technology realizes.
Preferably, the core of described image processing module adopts and reaches 1.5GHz based on ARM-Cortex-A9 double-core frequency, the simultaneously also integrated OMAP4460 of PowerVR SGX540 graphic core.
Preferably, the pin function of OMAP4460 is defined as follows, and by R26, R25 is as the input signal port of CSI21_DX0 and CSI21_DY0; By T26, T25 is as the input signal port of CSI21_DX1 and CSI21_DY1; By U26, U25 is as the input signal port of CSI21_DX2 and CSI21_DY2; By V26, V25 is as the input signal port of CSI21_DX3 and CSI21_DY3; By W26, W25 is as the input signal port of CSI21_DX4 and CSI21_DY4; T27 pin is as the shutter control port H_CAM_SHUTTER of image capture module; U27 pin is as photoflash lamp control port H_CAM_STROBE; W27 pin is as the reset signal control port of image capture module; Clock signal H_I2C_SCL and data-signal H_I2C_SDA during W27 communicates by letter as I2C respectively with Y27 pin, main control chip OMAP4460 is read and write and controls the control register of the OV14810 in image capture module by I2C.
Preferably, the interface of the interface circuit of image processing module and image capture module has 30 pins, pin one, 2, 7, 8, 13, 14, 19 ground connection, pin 3, the 5 corresponding CSI21_DX0 of difference and CSI21_DY0, pin 9, the 11 corresponding CSI21_DX1 of difference and CSI21_DY1, pin one 5, the 17 corresponding CSI21_DX2 of difference and CSI21_DY2, pin 4, the 6 corresponding CSI21_DX3 of difference and CSI21_DY3, pin one 2, the 14 corresponding CSI21_DX4 of difference and CSI21_DY4, pin two 1, clock signal H_I2C_SCL and the data-signal H_I2C_SDA of 23 respectively corresponding I2C communications, the reset initialization signal H_CAM_GLB_RESET of pin two 0 corresponding OV14810, the corresponding OV14810 shutter signal H_CAM_SHUTTER that controls of pin two 2, the corresponding output control signal of pin two 4 H_CAM_STROBE controls photoflash lamp, the clock synchronous frequency of the corresponding OMAP4460 output of pin two 7, this output frequency is as the clock frequency input of OV14810, pin two 9 is supplied with VBAT as the power supply of image capture module, pin 30 is that the power supply of image capture module is supplied with VDD_VAUX3 equally, the GPIO_40 pin of pin one 6 corresponding OMAP4460, as I/O mouth control end, the GPIO_45 pin of pin one 8 corresponding OMAP4460, as I/O mouth control end, pin two 5,26, the GPIO_47 pin of the corresponding OMAP4460 of 28 difference, GPIO_44 pin, GPIO_42 pin, wherein VBAT and VDD_VAUX3, as power output end, need respectively to add the filter capacitor of 1uF.
Preferably, interface circuit corresponding on image capture module is pin one, 2,7,8,13, and 14,19 ground connection; Clock signal MC_P and MC_N in the corresponding 5 groups of low-voltage differential rs 232 serial interface signal groups of pin 3,5 difference; MD0_P and MD0_N in pin 9,11 corresponding data signal groups; MD1_P and MD1_N in pin one 5,17 corresponding data signal groups; MD2_P and MD2_N in pin 4,6 corresponding data signal groups; MD3_P and MD3_N in pin one 0,12 corresponding data signal group; Pin one 6,22,25,26,27,28 spare interfaces are as for subsequent use; Pin one 8 is as the mains switch control of imageing sensor OV14810, and high level is effective, connects the pull down resistor of a 5.1k; Pin two 0 is as the reset signal RESET of imageing sensor OV14810, and high level is effective, connects the pull down resistor of a 5.1k; Pin two 4 is as the control signal STROBE of photoflash lamp; Pin two 1,23, respectively as the clock line SCL and the data wire SDA that communicate by letter with OV14810 imageing sensor I2C, connects the pull-up resistor of a 5.1k, and needs to add the resistance of one 0 ohm in connecting with 21,23 pins; Pin two 9 meets power supply VBAT, and bypass connects over the ground the electrochemical capacitor of a 22uf and the electric capacity of 1uf does isolation filter effect; Pin 30 meets power vd D_VAUX3, and same bypass needs to connect the 1uf electric capacity of an isolation filter over the ground.
Compared with prior art, beneficial effect of the present invention is as follows:
(1) the cmos sensor OV14810 of the back-illuminated type technology that the noise inhibiting ability of image capture module part employing OminiVision company is significantly broken through, it provides 4,416*3, the complete resolution of 312 pixels.The core of image processing module has adopted based on ARM-Cortex-A9 double-core frequency and has reached 1.5GHz, and the OMAP4460 of the TI company of simultaneously also integrated PowerVR SGX540 graphic core, to meet the work for the treatment of to the large data of image;
(2) in the deep-sea of insufficient light, the cmos sensor of back-illuminated type technology has more advantage than CCD, and 1,400 ten thousand pixels provide the image information having more in deep-sea exploration clearly;
(3) adopt MIPI interface to ensure transfer of data and the antijamming capability of two-forty simultaneously, thereby ensured to gather rapidly and accurately image information data.
Brief description of the drawings
Fig. 1 is the deep-sea encapsulating structure schematic diagram of high definition photographic system under water of the embodiment of the present invention;
Fig. 2 is the deep-sea theory diagram of high definition photographic system under water of the embodiment of the present invention;
Fig. 3 is the deep-sea master chip pin configuration figure of the image processing module of high definition photographic system under water of the embodiment of the present invention;
Fig. 4 is the deep-sea pin configuration figure of the interface circuit of the image processing module of high definition photographic system under water of the embodiment of the present invention;
Fig. 5 is the deep-sea master chip pin configuration figure of the image capture module of high definition photographic system under water of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
On the contrary, the present invention contain any defined by claim in marrow of the present invention and scope, make substitute, amendment, equivalent method and scheme.Further, for the public is had a better understanding to the present invention, in below details of the present invention being described, detailed some specific detail sections of having described.Do not have for a person skilled in the art the description of these detail sections can understand the present invention completely yet.
Referring to Fig. 1 and Fig. 2, shown in be respectively deep-sea encapsulating structure schematic diagram and the theory diagram of high definition photographic system under water of the embodiment of the present invention, the deep-sea of the embodiment of the present invention under water high definition photographic system 10 comprises: the withstand voltage glass 101 that thickness is 15-20mm; Be arranged on the 16mm cameras with fixed focus lens 102 of withstand voltage glass rear end; Be arranged on the image capture module 103 of lens rear end, image capture module is transferred to image processing module for the high pixel image processing information exchange collecting is crossed to MIPI-CSI2 interface; Be arranged on the image processing module 104 of image capture module rear end, image processing module, for the raw image data receiving is processed and format conversion, converts PIG form to from the initial data of RGB888; Be arranged on the power management module 105 of image processing module rear end, for providing each required voltage of image processing module and VBAT Voltage-output to image capture module; Being arranged on the interface 106 of power management module rear end, is the output of power supply, and the operating voltage of image capture module and pattern processing module is provided, and is 2 outputs of power management module, and VBAT and VDD_VAUX3 are as power output end; Wherein withstand voltage glass 101, lens 102, image capture module 103, image processing module 104, power management module 105 and interface 106 adopt the withstand voltage framework encapsulation of integral sealing to arrange.Referring to Fig. 2, the light that comprises image information focuses on the imageing sensor of image capture module 103 by the lens 102 of underwater camera, image capture module converts the original image analog signals obtaining after digital signal to, be communicated to image processing module 104 by 5 groups of low-voltage differential serial ports, image processing module 104 is saved in this original image in SD card, original image is carried out image compression by image processing module 104 simultaneously, sends PC deck machine to by Ethernet; User takes a picture by monitor procedure and the institute of the browsing device net page end real time inspection underwater camera on the machine of PC deck.
In concrete application example, power management module adopts TWL6030 power management chip, provides each voltage required in image processing module and VBAT Voltage-output to image capture module.The cmos sensor OV14810 that image capture module adopts back-illuminated type technology to realize.The core of image processing module adopts and reaches 1.5GHz based on ARM-Cortex-A9 double-core frequency, the simultaneously also integrated OMAP4460 of PowerVR SGX540 graphic core.Adopt back-illuminated type COMS imageing sensor OV14810 as image capture module core, solve the defect of ccd image sensor in insufficient light situation.Adopt in addition low-voltage differential serial communication to carry out Data Transmission Controlling, to ensure stability and the antijamming capability of the large transfer of data of two-forty, ensure to gather exactly image information data.OV14810 imageing sensor is controlled, adopt I2C protocol communication, with the I2C3 passage of OMAP4460, what OV14810 adopted is SCCB agreement (Serial Camera Control Bus camera control bus), SCCB agreement is class I2C agreement, but both also have difference, and I2C is 7 bit address, last 1 is read-write position, and SCCB is 8 bit address.
Referring to Fig. 3, be depicted as the deep-sea master chip pin configuration figure of the image processing module of high definition photographic system under water, the pin function of OMAP4460 is defined as follows, and by R26, R25 is as the input signal port of CSI21_DX0 and CSI21_DY0; By T26, T25 is as the input signal port of CSI21_DX1 and CSI21_DY1; By U26, U25 is as the input signal port of CSI21_DX2 and CSI21_DY2; By V26, V25 is as the input signal port of CSI21_DX3 and CSI21_DY3; By W26, W25 is as the input signal port of CSI21_DX4 and CSI21_DY4; T27 pin is as the shutter control port H_CAM_SHUTTER of image capture module; U27 pin is as photoflash lamp control port H_CAM_STROBE; W27 pin is as the reset signal control port of image capture module; Clock signal H_I2C_SCL and data-signal H_I2C_SDA during W27 communicates by letter as I2C respectively with Y27 pin, main control chip OMAP4460 is read and write and controls the control register of the OV14810 in image capture module by I2C.
Referring to Fig. 4, the interface of the interface circuit of image processing module and image capture module has 30 pins, pin one, 2, 7, 8, 13, 14, 19 ground connection, pin 3, the 5 corresponding CSI21_DX0 of difference and CSI21_DY0, pin 9, the 11 corresponding CSI21_DX1 of difference and CSI21_DY1, pin one 5, the 17 corresponding CSI21_DX2 of difference and CSI21_DY2, pin 4, the 6 corresponding CSI21_DX3 of difference and CSI21_DY3, pin one 2, the 14 corresponding CSI21_DX4 of difference and CSI21_DY4, pin two 1, clock signal H_I2C_SCL and the data-signal H_I2C_SDA of 23 respectively corresponding I2C communications, the reset initialization signal H_CAM_GLB_RESET of pin two 0 corresponding OV14810, the corresponding OV14810 shutter signal H_CAM_SHUTTER that controls of pin two 2, the corresponding output control signal of pin two 4 H_CAM_STROBE controls photoflash lamp, the clock synchronous frequency of the corresponding OMAP4460 output of pin two 7, this output frequency is as the clock frequency input of OV14810, pin two 9 is supplied with VBAT as the power supply of image capture module, pin 30 is that the power supply of image capture module is supplied with VDD_VAUX3 equally, the GPIO_40 pin of pin one 6 corresponding OMAP4460, as I/O mouth control end (for subsequent use), the GPIO_45 pin of pin one 8 corresponding OMAP4460, as I/O mouth control end (for subsequent use), pin two 5,26, the GPIO_47 pin of the corresponding OMAP4460 of 28 difference, GPIO_44 pin, GPIO_42 pin, wherein VBAT and VDD_VAUX3, as power output end, need respectively to add the filter capacitor of 1uF.
Referring to Fig. 5, be depicted as the deep-sea master chip pin configuration figure of the image capture module of high definition photographic system under water, interface circuit corresponding on image capture module is pin one, 2,7,8,13,14,19 ground connection; Clock signal MC_P and MC_N in the corresponding 5 groups of low-voltage differential rs 232 serial interface signal groups of pin 3,5 difference; MD0_P and MD0_N in pin 9,11 corresponding data signal groups; MD1_P and MD1_N in pin one 5,17 corresponding data signal groups; MD2_P and MD2_N in pin 4,6 corresponding data signal groups; MD3_P and MD3_N in pin one 0,12 corresponding data signal group; Pin one 6,22,25,26,27,28 spare interfaces are as for subsequent use; Pin one 8 is as the mains switch control of imageing sensor OV14810, and high level is effective, connects the pull down resistor of a 5.1k; Pin two 0 is as the reset signal RESET of imageing sensor OV14810, and high level is effective, connects the pull down resistor of a 5.1k; Pin two 4 is as the control signal STROBE of photoflash lamp; Pin two 1,23, respectively as the clock line SCL and the data wire SDA that communicate by letter with OV14810 imageing sensor I2C, connects the pull-up resistor of a 5.1k, and needs to add the resistance of one 0 ohm in connecting with 21,23 pins; Pin two 9 meets power supply VBAT, and bypass connects over the ground the electrochemical capacitor of a 22uf and the electric capacity of 1uf does isolation filter effect; Pin 30 meets power vd D_VAUX3, and same bypass needs to connect the 1uf electric capacity of an isolation filter over the ground.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a deep-sea high definition photographic system under water, is characterized in that, comprising:
Thickness is the withstand voltage glass of 15-20mm;
Be arranged on the 16mm cameras with fixed focus lens of withstand voltage glass rear end;
Be arranged on the image capture module of lens rear end, described image capture module is transferred to image processing module for the high pixel image processing information exchange collecting is crossed to MIPI-CSI2 interface;
Be arranged on the image processing module of image capture module rear end, described image processing module, for the raw image data receiving is processed and format conversion, converts PIG form to from the initial data of RGB888;
Be arranged on the power management module of image processing module rear end, for providing each required voltage of image processing module and VBAT Voltage-output to image capture module;
Being arranged on the interface of power management rear end, is the output of power supply, and the operating voltage of image capture module and pattern processing module is provided;
Wherein said withstand voltage glass, lens, image capture module, image processing module, power management module and interface adopt the withstand voltage framework encapsulation of integral sealing to arrange.
2. deep-sea according to claim 1 high definition photographic system under water, is characterized in that, the cmos sensor OV14810 that described image capture module adopts back-illuminated type technology to realize.
3. deep-sea according to claim 1 and 2 high definition photographic system under water, it is characterized in that, the core of described image processing module adopts and reaches 1.5GHz based on ARM-Cortex-A9 double-core frequency, the simultaneously also integrated OMAP4460 of PowerVR SGX540 graphic core.
4. deep-sea according to claim 3 high definition photographic system under water, is characterized in that, the pin function of OMAP4460 is defined as follows, and by R26, R25 is as the input signal port of CSI21_DX0 and CSI21_DY0; By T26, T25 is as the input signal port of CSI21_DX1 and CSI21_DY1; By U26, U25 is as the input signal port of CSI21_DX2 and CSI21_DY2; By V26, V25 is as the input signal port of CSI21_DX3 and CSI21_DY3; By W26, W25 is as the input signal port of CSI21_DX4 and CSI21_DY4; T27 pin is as the shutter control port H_CAM_SHUTTER of image capture module; U27 pin is as photoflash lamp control port H_CAM_STROBE; W27 pin is as the reset signal control port of image capture module; Clock signal H_I2C_SCL and data-signal H_I2C_SDA during W27 communicates by letter as I2C respectively with Y27 pin, main control chip OMAP4460 is read and write and controls the control register of the OV14810 in image capture module by I2C.
5. deep-sea according to claim 4 high definition photographic system under water, it is characterized in that, the interface of the interface circuit of image processing module and image capture module has 30 pins, pin one, 2, 7, 8, 13, 14, 19 ground connection, pin 3, the 5 corresponding CSI21_DX0 of difference and CSI21_DY0, pin 9, the 11 corresponding CSI21_DX1 of difference and CSI21_DY1, pin one 5, the 17 corresponding CSI21_DX2 of difference and CSI21_DY2, pin 4, the 6 corresponding CSI21_DX3 of difference and CSI21_DY3, pin one 2, the 14 corresponding CSI21_DX4 of difference and CSI21_DY4, pin two 1, clock signal H_I2C_SCL and the data-signal H_I2C_SDA of 23 respectively corresponding I2C communications, the reset initialization signal H_CAM_GLB_RESET of pin two 0 corresponding OV14810, the corresponding OV14810 shutter signal H_CAM_SHUTTER that controls of pin two 2, the corresponding output control signal of pin two 4 H_CAM_STROBE controls photoflash lamp, the clock synchronous frequency of the corresponding OMAP4460 output of pin two 7, this output frequency is as the clock frequency input of OV14810, pin two 9 is supplied with VBAT as the power supply of image capture module, pin 30 is that the power supply of image capture module is supplied with VDD_VAUX3 equally, the GPIO_40 pin of pin one 6 corresponding OMAP4460, as I/O mouth control end, the GPIO_45 pin of pin one 8 corresponding OMAP4460, as I/O mouth control end, pin two 5,26, the GPIO_47 pin of the corresponding OMAP4460 of 28 difference, GPIO_44 pin, GPIO_42 pin, wherein VBAT and VDD_VAUX3, as power output end, need respectively to add the filter capacitor of 1uF.
6. deep-sea according to claim 2 high definition photographic system under water, is characterized in that, interface circuit corresponding on image capture module is pin one, 2,7,8,13, and 14,19 ground connection; Clock signal MC_P and MC_N in the corresponding 5 groups of low-voltage differential rs 232 serial interface signal groups of pin 3,5 difference; MD0_P and MD0_N in pin 9,11 corresponding data signal groups; MD1_P and MD1_N in pin one 5,17 corresponding data signal groups; MD2_P and MD2_N in pin 4,6 corresponding data signal groups; MD3_P and MD3_N in pin one 0,12 corresponding data signal group; Pin one 6,22,25,26,27,28 spare interfaces are as for subsequent use; Pin one 8 is as the mains switch control of imageing sensor OV14810, and high level is effective, connects the pull down resistor of a 5.1k; Pin two 0 is as the reset signal RESET of imageing sensor OV14810, and high level is effective, connects the pull down resistor of a 5.1k; Pin two 4 is as the control signal STROBE of photoflash lamp; Pin two 1,23, respectively as the clock line SCL and the data wire SDA that communicate by letter with OV14810 imageing sensor I2C, connects the pull-up resistor of a 5.1k, and in connecting with 21,23 pins, needs to add the resistance of an O ohm; Pin two 9 meets power supply VBAT, and bypass connects over the ground the electrochemical capacitor of a 22uf and the electric capacity of 1uf does isolation filter effect; Pin 30 meets power vd D_VAUX3, and same bypass needs to connect the 1uf electric capacity of an isolation filter over the ground.
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| CN104902152A (en) * | 2015-05-21 | 2015-09-09 | 段然 | Application of MIPI (Mobile Industry Processor Interface) protocol CSI-2 interface camera to wearable recording equipment |
| CN107015288A (en) * | 2017-05-25 | 2017-08-04 | 青岛理工大学 | Multichannel underwater optical imaging method |
| CN110213543A (en) * | 2019-06-11 | 2019-09-06 | 广州海洋地质调查局 | A kind of seabed polymetallic nodules view synthesis system |
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| US6315626B2 (en) * | 1998-06-26 | 2001-11-13 | Qvf Pilot-Tec Gmbh | Adhesively bonded pressure-resistant glass bodies |
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| CN104902152A (en) * | 2015-05-21 | 2015-09-09 | 段然 | Application of MIPI (Mobile Industry Processor Interface) protocol CSI-2 interface camera to wearable recording equipment |
| CN107015288A (en) * | 2017-05-25 | 2017-08-04 | 青岛理工大学 | Multichannel underwater optical imaging method |
| CN110213543A (en) * | 2019-06-11 | 2019-09-06 | 广州海洋地质调查局 | A kind of seabed polymetallic nodules view synthesis system |
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