CN114414064A - Infrared large zoom lens optical axis deviation self-correcting device - Google Patents
Infrared large zoom lens optical axis deviation self-correcting device Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 66
- 238000003331 infrared imaging Methods 0.000 claims abstract description 27
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- 230000005855 radiation Effects 0.000 claims description 5
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- 238000012937 correction Methods 0.000 abstract description 9
- 238000003384 imaging method Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 9
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0806—Focusing or collimating elements, e.g. lenses or concave mirrors
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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
- H04N23/50—Constructional details
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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
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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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
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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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
- H04N23/67—Focus control based on electronic image sensor signals
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- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
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Abstract
The invention discloses an optical axis deviation self-correcting device of an infrared large zoom lens, which relates to the field of automatic lens focusing correction and aims to solve the problems that the prior art can only meet the requirements of conventional use places and the prior infrared large zoom lens cannot focus in real time in the continuous zooming process, and adopts the technical scheme that the device comprises the infrared large zoom lens, an infrared imaging device, an optical axis deviation self-correcting device and a human-computer interaction device, a high-performance singlechip and an algorithm program are adopted to solve the problem that the infrared large zoom lens cannot perform self-adaptive automatic focusing in the continuous zooming process in real time, thereby realizing the limitation of effective and clear imaging of the target, overcoming the defect that the prior infrared large zoom lens can not focus in real time in the continuous zooming process, the method can be adopted in complex and special application environments, particularly in the observation of long-distance targets, and has wide application prospect.
Description
Technical Field
The invention relates to the field of automatic focusing correction of lenses, in particular to an optical axis deviation self-correcting device of an infrared large zoom lens.
Background
In recent years, the infrared thermal imaging technology is widely applied to the fields of public safety and special industries, infrared images are not influenced by environmental factors, monitoring all the day can be achieved, and clear imaging can be still achieved particularly at night and under the condition of poor visibility. These unique features are widely recognized by users.
In some practical applications, a large zoom infrared lens is required to be configured when a long-distance target is observed, and the large zoom infrared lens has continuous zooming and focusing functions and can observe the long-distance target. At present, the zooming and focusing functions of the widely used large zooming infrared lens are usually completed manually, when the large zooming infrared lens is adopted to draw a target to be very close and the field angle is very small, manual focusing is carried out to keep the image clear, and in some use scenes, manual focusing cannot be carried out.
The infrared imaging working wave band is 8-14 μm, the infrared imaging principle is the process of sensing the temperature distribution form of the observed target and restoring the image through the calculation of a complex software algorithm. When a large zoom infrared lens is adopted to observe a long-distance target, along with the change of the depth of field of a view field, the optical axis deviation self-correction focusing function is adopted, so that the display is necessary and urgent.
In summary, the general infrared zoom lens can only satisfy the requirements of the conventional application places in practical use, and in a complicated and special application environment, especially in the observation of a long-distance target, an adaptive infrared lens optical axis deviation self-correcting device must be designed to satisfy the requirements of auto-focusing and clear imaging.
Disclosure of Invention
In view of the problems in the prior art, the invention discloses an optical axis offset self-correcting device of an infrared large zoom lens, which solves the problem that the existing infrared large zoom lens cannot perform self-adaptive automatic focusing in time in the continuous zooming process, thereby realizing effective clear imaging on a target.
The invention adopts the technical scheme that the device comprises a target heat radiation signal, an infrared large zoom lens, an infrared imaging device, an optical axis deviation self-correcting device and a man-machine interaction device, wherein the infrared large zoom lens is connected with the infrared imaging device, the infrared imaging device is connected with the optical axis deviation self-correcting device, the optical axis deviation self-correcting device is connected with the infrared large zoom lens, and the infrared large zoom lens has continuous zooming and focusing functions.
As a preferred technical scheme of the invention, the infrared large zoom lens filters a target heat radiation signal by a film coating lens group and then transmits the filtered signal to a thermoelectric conversion device in an infrared imaging device, and an analog image is output to an optical axis deviation self-correcting device by an A/D conversion device and an image enhancement device.
As a preferred technical solution of the present invention, the optical axis deviation self-correcting device is a core device of the present invention, and performs calculation and comparison of standard variance of gray scale values of images on analog images received from the infrared imaging device, and the optical axis deviation self-correcting device communicates with the human-computer interaction device and the 232 port of the infrared imaging device through the 232 port to realize sending of an interaction instruction; the man-machine interaction device is a PC terminal and transmits a control command with the optical axis deviation self-correcting device through the 232 port.
As a preferred technical solution of the present invention, the infrared large zoom lens includes a coated lens group, a focusing motor, a zoom motor, a first encoder, a second encoder, and an optocoupler limit switch, wherein the coated lens group is connected to the focusing motor, the coated lens group is connected to the zoom motor, the focusing motor is connected to the first encoder, the focusing motor is connected to the optocoupler limit switch, the zoom motor is connected to the second encoder, the zoom motor is connected to the optocoupler limit switch, the focusing motor receives a control command from a focus driving module to drive the coated lens group to move to realize a focusing function, and the first encoder and the optocoupler limit switch feed back an action state of the focusing motor to a processor in the optical axis offset self-correcting device; the zooming motor receives a control command from the zooming driving module, drives the coated lens group to move to realize the zooming function, and meanwhile, the second encoder and the optocoupler limit switch feed back the action state of the zooming motor to the processor in the optical axis deviation self-correcting device.
As a preferable technical scheme of the invention, the infrared imaging device comprises a thermoelectric conversion device, an A/D conversion device, an image enhancement device, an analog interface and a first RS232 interface, the thermoelectric conversion device is connected with the A/D conversion device, the A/D conversion device is connected with the image enhancement device, the image enhancement device is connected with the analog interface, the image enhancement device is connected with the first RS232 interface, the thermoelectric conversion device converts the radiant heat signal into an electric signal, the A/D conversion device carries out digital processing on the electric signal, the electric signal is sent to the image enhancement device to carry out enhancement filtering on the signal and then output the analog signal to the analog interface and then to the optical axis deviation self-correcting device, the image enhancement device is connected with the MAX3232UART through a first RS232 interface, and communication with a processor in the optical axis deviation self-correction device is achieved.
As a preferred technical solution of the present invention, the optical axis deviation self-correcting device includes a processor, an a/D converter, a MAX3232UART, an SDRAM, an EEPROM, a focus driving module, and a zoom driving module, wherein the processor is connected to the a/D converter, the processor is connected to the MAX3232UART, the processor is connected to the SDRAM, the processor is connected to the EEPROM, the processor is connected to the focus driving module, the processor is connected to the zoom driving module, the processor starts an application program to calculate image characteristics after acquiring a video image signal, calculates a rotation speed, a direction, and a rotation number of a motor, and determines whether a gray level of the video image reaches an image gray level standard variance, and does not perform processing if the gray level reaches the image gray level standard variance; if the standard variance is not reached, the processor outputs a control instruction to the focusing driving module, the focusing driving module sends the instruction to a focusing motor in the infrared large zoom lens, the focusing motor drives the coated lens group to move, meanwhile, the encoder 1 and the optical coupling limit switch feed back the rotation state of the focusing motor to the processor, the processor judges whether the image gray scale reaches the standard variance of the image gray scale value in real time and sends a control instruction to the focusing motor in real time to continuously correct the rotation direction and the rotation number of the motor until the image gray scale reaches the standard variance of the image gray scale value, and the adjustment process is continuous, therefore, the large zoom lens can realize self-adaptive automatic focusing in real time in the continuous zooming process, the zoom control of the optical axis deviation self-correcting device is manually operated through a PC terminal, and the focusing control is realized by a processor.
As a preferred technical scheme of the invention, the processor is used for receiving an artificial zooming control instruction from a PC terminal through a communication serial port MAX3232UART, the artificial zooming control instruction is sent to the processor, the processor sends the artificial zooming control instruction to the zooming driving module and then to a zooming motor in the infrared large zooming lens, the zooming motor drives the coated lens group to move to realize continuous zooming, meanwhile, the encoder 2 and the optical coupling limit switch feed back the rotation state of the zooming motor to the processor, and the processor judges whether the rotation of the zooming motor reaches a rotation limit position or not so as to stop the zooming action of the coated lens group.
As a preferred technical scheme of the invention, the processor adopts an STM32F429IGH6 singlechip, an industrial grade, 180MHz main frequency, 2MB FLASH, 256+4KB SRAM, a 32-bit data bus and LCD parallel port resources.
As a preferred technical scheme of the invention, the SDRAM adopts W9825G6KH-6I, 4 Mx 4BANKS x 16Bits capacity, industrial grade.
As a preferable technical scheme of the invention, the EEPROM adopts AT24C02, 256 multiplied by 8bits, industrial grade.
As a preferred technical scheme of the invention, the A/D conversion adopts ADV7180WBCP32Z, supports 1-path analog video input, and outputs signals of 8bits video data, VS, HS, PCLK and the like in digital mode
As a preferred technical scheme of the invention, the human-computer interaction device comprises a second RS232 interface and a PC terminal, and the second RS232 interface is connected with the PC terminal.
The invention has the beneficial effects that: the invention solves the problem that the infrared large zoom lens cannot perform self-adaptive automatic focusing in time in the continuous zooming process by arranging the infrared large zoom lens, the infrared imaging device, the optical axis deviation self-correcting device and the human-computer interaction device and adopting a high-performance singlechip and an algorithm program, thereby realizing the limitation of effectively and clearly imaging a target, overcoming the defect that the existing infrared large zoom lens cannot perform real-time focusing in the continuous zooming process, being capable of being adopted in a complex and special application environment, particularly in the observation of a long-distance target and having wide application prospect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an infrared zoom lens according to the present invention;
FIG. 3 is a schematic view of an infrared imaging apparatus according to the present invention;
FIG. 4 is a schematic structural diagram of an optical axis deviation self-correcting device;
FIG. 5 is a schematic structural diagram of a human-computer interaction device according to the present invention.
In the figure: 101. an infrared large zoom lens; 102. an infrared imaging device; 103. an optical axis deviation self-correcting device; 104. a human-computer interaction device; 1011. a coated lens group; 1012. a focus motor; 1013. a zoom motor; 1014. a first encoder; 1015. a second encoder; 1016. an optocoupler limit switch; 1021. a thermoelectric conversion device; 1022. an A/D conversion device; 1023. an image enhancement device; 1024. an analog interface; 1025. a first RS232 interface; 1031. a processor; 1032. A/D conversion; 1033. a focus drive module; 1034. a zoom driving module; 1035. MAX3232 UART; 1036. SDRAM; 1037. an EEPROM; 1041. a second RS232 interface; 1042. and a PC terminal.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 5, the present invention discloses an optical axis deviation self-correcting device for an infrared large zoom lens, which adopts the technical scheme that the device comprises an infrared large zoom lens 101, an infrared imaging device 102, an optical axis deviation self-correcting device 103 and a human-computer interaction device 104; the infrared large zoom lens 101 is connected with an infrared imaging device 102, the infrared imaging device 102 is connected with an optical axis deviation self-correcting device 103, the optical axis deviation self-correcting device 103 is connected with a man-machine interaction device 104, and all the devices are connected with each other by flange plates or shielded cables.
In a preferred embodiment of the present invention, the infrared zoom lens 101 filters a target thermal radiation signal by the coated lens group 1011 and outputs the filtered signal to the thermoelectric conversion device 1021 of the infrared imaging device 102, and outputs an analog image to the optical axis deviation self-correcting device 103 through the a/D conversion device 1022 and the image enhancement device 1023.
As a preferred technical solution of the present invention, the optical axis deviation self-correcting device 103 is a core device of the present invention, and performs calculation and comparison of standard variance of gray level values of images on analog images received from the infrared imaging device 102, and the optical axis deviation self-correcting device 102 communicates with the human-computer interaction device 104 and the 232 port of the infrared imaging device 102 through the 232 port to realize sending of interaction instructions; the human-computer interaction device 104 is a PC terminal, and transmits a control command to the optical axis deviation self-correction device 103 through the 232 port.
As a preferred technical scheme of the invention, the infrared large zoom lens 101 comprises a coated lens group 1011, a focusing motor 1012, a zoom motor 1013, a first encoder 1014, a second encoder 1015 and an optical coupling limit switch 1016, the coated lens group 1011 is connected with the focusing motor 1012, the coated lens group 1011 is connected with the zoom motor 1013, the focusing motor 1012 is connected with the first encoder 1014, the focusing motor 1012 is connected with the optical coupling limit switch 1016, the zooming motor 1013 is connected with the second encoder 1015, the zooming motor 1013 is connected with the optical coupling limit switch 1016, the focusing motor 1012 receives a control command from the focusing driving module 1033 to drive the coated lens group 1011 to move to realize the focusing function, simultaneously, the first encoder 1014 and the optocoupler limit switch 1016 feed back the action state of the focusing motor 1012 to the processor 1031 in the optical axis deviation self-correcting device 103; the zooming motor 1013 receives the control command from the zooming driving module 1034, drives the coated lens group 1011 to implement the zooming function, and simultaneously the second encoder 1015 and the optical coupling limit switch 1016 feed back the action status of the zooming motor 1013 to the processor 1031 in the optical axis deviation self-correction device 103.
As a preferred embodiment of the present invention, the infrared imaging apparatus 102 includes a thermoelectric conversion device 1021, an a/D conversion device 1022, an image enhancement device 1023, an analog interface 1024, and a first RS232 interface 1025, wherein the thermoelectric conversion device 1021 is connected to the a/D conversion device 1022, the a/D conversion device 1022 is connected to the image enhancement device 1023, the image enhancement device 1023 is connected to the analog interface 1024, the image enhancement device 1023 is connected to the first RS232 interface 1025, the thermoelectric conversion device 1021, the a/D conversion device 1022, the image enhancement device 1023, the analog interface 1024, and the first RS232 interface 1025 are configured to perform thermoelectric conversion, analog-to-digital conversion, and image enhancement processing on an image signal, and output an analog image signal.
As a preferred technical solution of the present invention, the optical axis deviation self-correcting device 103 includes a processor 1031, an a/D converter 1032, a MAX3232UART 1035, SDRAM 1036, EEPROM 1037, a focus driving module 1033, and a zoom driving module 1034, where the processor 1031 is connected to the a/D converter 1032, the processor 1031 is connected to the MAX3232UART 1035, the processor 1031 is connected to the SDRAM 1036, the processor 1031 is connected to the EEPROM 1037, the processor 1031 is connected to the focus driving module 1033, the processor 1031 is connected to the zoom driving module 1034, the processor 1031 calculates image characteristics after acquiring video image signals, calculates motor rotation speed, direction, and rotation number, and determines whether a video image gray scale reaches an image gray scale standard variance, and if the video gray scale standard variance reaches the standard variance, does not perform processing; if the standard variance is not reached, the processor 1031 outputs a control instruction to the focus driving module 1033, the focus driving module 1033 sends the instruction to the focus motor 1012 in the infrared zoom lens 101, the focus motor 1012 drives the coated lens group 1011 to move, meanwhile, the first encoder 1014 and the optical coupling limit switch 1016 feed back the rotation state of the focus motor 1012 to the processor 1031 in the optical axis deviation self-correcting device 103, the processor 1031 judges whether the image gray scale reaches the standard variance of the image gray scale value in real time and sends a control instruction to the focus motor 1012 in real time, and continuously corrects the rotation direction and the rotation number of the motor until the image gray scale value reaches the standard variance of the image gray scale value, so that the real-time self-adaptive auto-focusing of the zoom lens in the continuous zooming process is realized, the optical axis deviation self-correcting device 103 controls the zooming by manually sending an instruction through the PC terminal 1042, the focusing control is realized by a processor 1031, the processor 1031 is used for receiving a manual zooming control instruction from a PC terminal 1042 through a communication serial port MAX3232UART 1035, the manual zooming control instruction is sent to the processor 1031, the processor 1031 sends the manual zooming control instruction to a zooming driving module 1034, the manual zooming control instruction is sent to a zooming motor 1013 in the infrared large zooming lens 101 to drive the coated lens group 1011 to move so as to realize continuous zooming, meanwhile, the second encoder 1015 and the optical coupling limit switch 1016 feed back the rotation state of the zooming motor 1013 to the processor 1031, and the processor 1031 judges whether the rotation of the zooming motor 1013 reaches a rotation limit position so as to stop the zooming action of the lens group.
As a preferred technical scheme of the invention, the processor 1031 adopts STM32F429IGH6 single-chip microcomputer, industrial grade, 180MHz dominant frequency, 2MB FLASH, 256+4KB SRAM, 32-bit data bus and LCD parallel port resource.
As a preferred technical scheme of the invention, the SDRAM 1036 adopts W9825G6KH-6I, 4 Mx 4BANKS x 16Bits capacity, industrial grade.
As a preferable technical scheme of the invention, the EEPROM 1037 adopts AT24C02, 256 multiplied by 8bits, industrial grade.
As a preferred technical solution of the present invention, the a/D conversion 1032 adopts ADV7180WBCP32Z, and supports 1-channel analog video input, and outputs signals such as 8bits video data, VS, HS, and PCLK in digital.
As a preferred technical solution of the present invention, the human-computer interaction device 104 includes a second RS232 interface 1041 and a PC terminal 1042, and the second RS232 interface 1041 is connected to the PC terminal 1042 and is used for sending an artificial zoom control instruction to implement zoom operation on the infrared lens.
The working principle of the invention is as follows: the infrared large zoom lens 101 filters a target heat radiation signal by a coated lens group 1011 and outputs the filtered signal to a thermoelectric conversion device 1021 in an infrared imaging device 102, an analog image is output to an optical axis deviation self-correcting device 103 by an A/D conversion device 1022 and an image enhancement device 1023, the optical axis deviation self-correcting device calculates and compares the standard deviation of the gray value of the image of the analog image received from the infrared imaging device 102, and the optical axis deviation self-correcting device 102 communicates with a man-machine interaction device 104 and a 232 port of the infrared imaging device 102 through the 232 port to realize the sending of an interaction instruction; the man-machine interaction device 104 is a PC terminal, and transmits a control command with the optical axis deviation self-correction device 103 through a 232 port, the focusing motor 1012 receives the control command from the focusing driving module 1033, and drives the coated lens group 1011 to move to realize a focusing function, and meanwhile, the first encoder 1014 and the optical coupling limit switch 1016 feed back the action state of the focusing motor 1012 to the processor 1031 in the optical axis deviation self-correction device 103; the zooming motor 1013 receives a control command from the zooming driving module 1034, drives the coated lens group 1011 to move to realize a zooming function, and simultaneously the second encoder 1015 and the optocoupler limit switch 1016 feed back the action state of the zooming motor 1013 to the processor 1031 in the optical axis deviation self-correction device 103, the processor 1031 calculates the image characteristics after acquiring the video image signal, calculates the motor rotation speed, direction and rotation number, judges whether the video image gray scale reaches the standard variance of the image gray scale value, and does not process if the video image gray scale value reaches the standard variance; if the standard variance is not reached, the processor 1031 outputs a control instruction to the focus driving module 1033, the focus driving module 1033 sends the instruction to the focus motor 1012 in the infrared zoom lens 101, the focus motor 1012 drives the coated lens group 1011 to move, meanwhile, the first encoder 1014 and the optocoupler limit switch 1016 feed back the rotation state of the focus motor 1012 to the processor 1031 in the optical axis deviation self-correcting device 103, the processor 1031 judges whether the image gray scale reaches the image gray scale value standard variance in real time and sends a control instruction to the focus motor 1012 in real time to continuously correct the rotation direction and the rotation number of the motor, and the adjustment process is continuous until the image gray scale value reaches the image gray scale value standard variance, so that the real-time self-adaptive automatic focusing of the zoom lens in the continuous zooming process is realized.
The mechanical and electrical connections involved in the present invention are conventional means employed by those skilled in the art, and may be suggested by limited experimentation, and are within the ordinary knowledge.
Components not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (9)
1. The utility model provides an infrared big zoom lens optical axis skew self-correcting device which characterized in that: including target heat radiation signal, infrared big zoom lens (101), infrared imaging device (102), optical axis skew self-calibration device (103), man-machine interaction device (104), infrared big zoom lens (101) with infrared imaging device (102) are connected, infrared imaging device (102) with optical axis skew self-calibration device (103) are connected, optical axis skew self-calibration device (103) with infrared big zoom lens (101) are connected, adopt ring flange or shielded cable interconnect between each device, infrared big zoom lens (101) have continuous zoom and focus function.
2. The optical axis deviation self-correcting device of the infrared zoom lens according to claim 1, characterized in that: infrared big zoom camera lens (101), contain coated lens group (1011), focus motor (1012), zoom motor (1013), first encoder (1014), second encoder (1015), opto-coupler limit switch (1016), coated lens group (1011) with focus motor (1012) are connected, coated lens group (1011) with zoom motor (1013) is connected, focus motor (1012) with first encoder (1014) is connected, focus motor (1012) with opto-coupler limit switch (1016) is connected, zoom motor (1013) with second encoder (1015) is connected, zoom motor (1013) with opto-coupler limit switch (1016) is connected.
3. The optical axis deviation self-correcting device of the infrared zoom lens according to claim 1, characterized in that: the infrared imaging device (102) comprises a thermoelectric conversion device (1021), an A/D conversion device (1022), an image enhancement device (1023), an analog interface (1024) and a first RS232 interface (1025), wherein the thermoelectric conversion device (1021) is connected with the A/D conversion device (1022), the A/D conversion device (1022) is connected with the image enhancement device (1023), the image enhancement device (1023) is connected with the analog interface (1024), and the image enhancement device (1023) is connected with the first RS232 interface (1025).
4. The optical axis deviation self-correcting device of the infrared zoom lens according to claim 1, characterized in that: the optical axis deviation self-correcting device (103) comprises a processor (1031), an A/D conversion module (1032), a MAX3232UART (1035), SDRAM (1036), EEPROM (1037), a focusing driving module (1033) and a zooming driving module (1034), wherein the processor (1031) is connected with the A/D conversion module (1032), the processor (1031) is connected with the MAX3232UART (1035), the processor (1031) is connected with the SDRAM (1036), the processor (1031) is connected with the EEPROM (1037), the processor (1031) is connected with the focusing driving module (1033), and the processor (1031) is connected with the zooming driving module (1034).
5. The device for self-correcting optical axis offset of the infrared zoom lens according to claim 4, wherein: the processor (1031) adopts STM32F429IGH6 single chip microcomputer, industrial grade, 180MHz dominant frequency, 2MB FLASH, 256+4KB SRAM, 32-bit data bus and LCD parallel port resource.
6. The device for self-correcting optical axis offset of the infrared zoom lens according to claim 4, wherein: the SDRAM (1036) employs W9825G6KH-6I, 4M × 4BANKS × 16Bits capacity, industry level.
7. The device for self-correcting optical axis offset of the infrared zoom lens according to claim 4, wherein: the EEPROM (1037) is in industrial grade of AT24C02, 256 x 8 bits.
8. The device for self-correcting optical axis offset of the infrared zoom lens according to claim 4, wherein: the A/D conversion (1032) adopts ADV7180WBCP32Z, and supports 1-path analog video input and digital output of signals of 8bits video data, VS, HS, PCLK and the like.
9. The optical axis deviation self-correcting device of the infrared zoom lens according to claim 1, characterized in that: the human-computer interaction device (104) comprises a second RS232 interface (1041) and a PC terminal (1042), and the second RS232 interface (1041) is connected with the PC terminal (1042).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111624126.2A CN114414064A (en) | 2021-12-28 | 2021-12-28 | Infrared large zoom lens optical axis deviation self-correcting device |
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