A multifunctional endoscope camera

Abstract

The present invention discloses a multifunctional endoscope camera head, comprising a housing, a waterproof lens is provided at the front end of the housing, and a lens assembly, a first substrate, a second substrate, an FPGA module and a USB interface are arranged in the housing, the first substrate and the second substrate are arranged in sequence along the direction from the front end to the rear end of the housing, the rear end of the lens assembly is arranged to the side of the first substrate away from the second substrate, the front end of the lens assembly is opposite to the waterproof lens, the FPGA module and the USB interface are both arranged on the second substrate, and the lens assembly and the USB interface are both electrically connected to the FPGA module; the lens assembly is used to collect two consecutive frames of images of the detected object and output the collected two consecutive frames of images to the FPGA module. The present invention is conducive to the user's analysis and diagnosis of the detected object, and greatly meets the use requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to a multifunctional endoscope camera head. Background Art

[0002] Industrial endoscope cameras are widely used because they are easy to use and can enter through smaller pipes to take pictures.

[0003] Current endoscope cameras can generally only achieve simple image acquisition and transmission, and have no image synthesis function, which is not conducive to the user's analysis and diagnosis of the inspected object and cannot meet usage requirements. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a multifunctional endoscope camera head, which is beneficial for users to analyze and diagnose the detected object and can meet the usage requirements.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A multifunctional endoscope camera head comprises a shell, a front end of which is provided with a waterproof lens, and a lens assembly, a first substrate, a second substrate, an FPGA module and a USB interface arranged in the shell, wherein the first substrate and the second substrate are arranged in sequence along the direction from the front end to the rear end of the shell, the rear end of the lens assembly is arranged to a side of the first substrate away from the second substrate, the front end of the lens assembly is opposite to the waterproof lens, the FPGA module and the USB interface are both arranged on the second substrate, and the lens assembly and the USB interface are both electrically connected to the FPGA module; the lens assembly is used to collect two consecutive frames of images of the detected object and output the collected two consecutive frames of images to the FPGA module; the FPGA module is used to intercept and enlarge the middle part of the received previous frame image to obtain an intermediate image, and is used to superimpose the obtained intermediate image and the received next frame image to obtain a composite image and output the obtained composite image to the display device of the endoscope through the USB interface for display.

[0007] As a preferred technical solution, it also includes a distance sensor arranged on the second substrate, and the distance sensor is electrically connected to the FPGA module; the distance sensor is used to detect the distance between the endoscope camera and the object to be detected and output the detected distance to the FPGA module; the FPGA module is used to output the received distance between the endoscope camera and the object to be detected to the display device of the endoscope through the USB interface for display.

[0008] As a preferred technical solution, the FPGA module is also used to count the number of pixels of the received next frame of image, and calculate the outline size of the detected object based on the counted number of pixels and the received distance between the endoscope camera and the detected object, and to output the calculated outline size of the detected object to the display device of the endoscope through the USB interface, and display it in the form of a ruler through the display device of the endoscope.

[0009] As a preferred technical solution, it also includes a temperature sensor arranged on the second substrate, and the temperature sensor is electrically connected to the FPGA module; the temperature sensor is used to detect the internal temperature of the endoscope camera and output the detected temperature to the FPGA module; the FPGA module is used to output the received internal temperature of the endoscope camera through the USB interface to the display device of the endoscope for display.

[0010] As a preferred technical solution, it also includes an alarm module set on the second substrate, the alarm module is electrically connected to the FPGA module, and the FPGA module is also used to compare the received internal temperature of the endoscope camera with a preset alarm temperature threshold. When the internal temperature of the endoscope camera is greater than the preset alarm temperature threshold, the FPGA module controls the alarm module to issue an alarm.

[0011] As a preferred technical solution, it also includes a third substrate arranged in the housing, the third substrate is located between the waterproof lens and the first substrate, the third substrate has a through hole, the front end of the lens assembly passes through the through hole and is located between the waterproof lens and the third substrate.

[0012] As a preferred technical solution, it also includes a voice coil motor and a driving chip arranged on a side of the third substrate close to the waterproof lens, the front end of the lens assembly is accommodated in the accommodating cavity of the voice coil motor, the voice coil motor is electrically connected to the driving chip, and the driving chip is electrically connected to the FPGA module; the voice coil motor is used to drive the lens assembly to move forward and backward along the axial direction of the endoscope camera to achieve focusing, and the driving chip is controlled by the FPGA module to control the operation of the voice coil motor.

[0013] As a preferred technical solution, it also includes an infrared lamp and a white light lamp arranged on a side of the third substrate close to the waterproof lens, and the infrared lamp and the white light lamp are electrically connected to the FPGA module.

[0014] As a preferred technical solution, a mounting groove is provided on the front inner wall of the housing, and the waterproof lens is arranged in the mounting groove.

[0015] As a preferred technical solution, the housing is a metal part.

[0016] The beneficial effects of the present invention are as follows: the lens assembly of the present invention is used to collect two consecutive frames of images of the object to be detected and output the collected two consecutive frames of images to the FPGA module, the FPGA module is used to intercept and amplify the middle part of the received previous frame of image to obtain an intermediate image, and is used to superimpose the obtained intermediate image and the received subsequent frame of image to obtain a composite image and output the obtained composite image to the display device of the endoscope through a USB interface for display, thereby realizing a picture-in-picture function. Since the intermediate image is magnified, the questionable parts on the image can be observed intuitively and quickly, and more details on the image can be observed, which is very beneficial for the user to analyze and diagnose the object to be detected and greatly meets the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of a multifunctional endoscope camera provided by one embodiment of the present invention;

[0019] Figure 2 , Figure 3 yes Figure 1 An exploded schematic diagram of the multifunctional endoscope camera shown;

[0020] Figure 4 yes Figure 1 The schematic diagram of the functional block diagram of the multifunctional endoscope camera is shown. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0022] Please refer to Figures 1 to 4A multifunctional endoscope camera head provided by one embodiment of the present invention includes a housing 12 with openings at both ends, a lens assembly 14, a first substrate 16, a second substrate 18, an FPGA module 22 and a USB interface 28 arranged in the housing 12.

[0023] The front end of the housing 12 is provided with a waterproof lens 122. Specifically, the front inner wall of the housing 12 is provided with an annular mounting groove 124, and the waterproof lens 122 is set in the mounting groove 124, which is convenient for installing the waterproof lens 122 and can also prevent the waterproof lens 122 from falling into the interior of the housing 12.

[0024] The first substrate 16 and the second substrate 18 are arranged in sequence along the direction from the front end to the rear end of the housing 12. The first substrate 16 is circular, the second substrate 18 is rectangular and is arranged perpendicular to the first substrate 16, and the length direction of the second substrate 18 is the same as the axial direction of the endoscope camera. The rear end of the lens assembly 14 is set to the side of the first substrate 16 away from the second substrate 18, and the front end of the lens assembly 14 is opposite to the waterproof lens 122. The FPGA module 22 and the USB interface 28 are both set to the second substrate 18, and the lens assembly 14 and the USB interface 28 are both electrically connected to the FPGA module 22. The lens assembly 14 collects two consecutive frames of images of the detected object and outputs the collected two consecutive frames of images to the FPGA module 22. The FPGA module 22 is used to intercept and enlarge the middle part of the previous frame image received to obtain an intermediate image, and to superimpose the obtained intermediate image and the received next frame image to obtain a composite image and output the obtained composite image to the display device of the endoscope through the USB interface 28 for display, thereby realizing a picture-in-picture function. Since the intermediate image is enlarged, the questionable parts of the image can be observed intuitively and quickly, and more details on the image can be observed, which is very beneficial for the user to analyze and diagnose the detected object and greatly meets the use requirements.

[0025] Furthermore, the endoscope camera of the present invention further includes a distance sensor 24 provided on the second substrate 18, and the distance sensor 24 is electrically connected to the FPGA module 22. The distance sensor 24 is used to detect the distance between the endoscope camera and the detected object and output the detected distance to the FPGA module 22. The FPGA module 22 is used to output the received distance between the endoscope camera and the detected object to the display device of the endoscope through the USB interface 28 for display, so that the user can know the distance between the endoscope camera and the detected object, and it is convenient for the user to adjust the distance between the endoscope camera and the detected object.

[0026] The FPGA module 22 is also used to count the number of pixels of the next received frame of image, and calculate the outline size of the detected object based on the counted number of pixels and the received distance between the endoscope camera and the detected object, and to output the calculated outline size of the detected object to the display device of the endoscope through the USB interface 28, and display it in the form of a ruler through the display device of the endoscope, so that the user can know the size of the detected object according to the scale of the ruler, which is beneficial to the user's analysis and diagnosis of the detected object.

[0027] Furthermore, the endoscope camera head of the present invention further includes a temperature sensor 26 and an alarm module 262 which are arranged on the second substrate 18 , and the temperature sensor 26 and the alarm module 262 are electrically connected to the FPGA module 22 .

[0028] The temperature sensor 26 is used to detect the temperature inside the endoscope camera head and output the detected temperature to the FPGA module 22. The FPGA module 22 is used to output the received temperature inside the endoscope camera head to the display device of the endoscope through the USB interface 28 for display, so that the user can know the temperature inside the endoscope camera head.

[0029] The FPGA module 22 is also used to compare the received internal temperature of the endoscope camera head with a preset alarm temperature threshold. When the internal temperature of the endoscope camera head is greater than the preset alarm temperature threshold, the FPGA module 22 controls the alarm module 262 (see Figure 4 ) to give an alarm to remind the user to prevent damage to the endoscope camera. The alarm module 262 is, for example, a buzzer. It can be understood that the FPGA module 22 can also stop outputting images to the display device of the endoscope, thereby cutting off the image, which can also serve as a reminder to the user.

[0030] Furthermore, the endoscope camera head of the present invention further includes a third substrate 32, a voice coil motor (VCM) 34, and a driver chip (VCM Driver IC) 36 disposed in the housing 12. The shape of the third substrate 32 corresponds to the shape of the first substrate 16, and the third substrate 32 is located between the waterproof lens 122 and the first substrate 16. The third substrate 32 has a through hole, and the front end of the lens assembly 14 passes through the through hole and is located between the waterproof lens 122 and the third substrate 32.

[0031] The voice coil motor 34 and the driver chip 36 are arranged on one side of the third substrate 32 close to the waterproof lens 122, and the driver chip 36 is located on one side of the voice coil motor 34. The front end of the lens assembly 14 is accommodated in the accommodating cavity 342 of the voice coil motor 34, the voice coil motor 34 is electrically connected to the driver chip 36, and the driver chip 36 is electrically connected to the FPGA module 22. The voice coil motor 34 is used to drive the lens assembly 14 to move forward and backward along the axial direction of the endoscope camera to achieve the focusing function, so that the endoscope camera of the present invention also has an automatic focusing function to ensure the clarity of the image. The driver chip 36 is controlled by the FPGA module 22 and is used to control the operation of the voice coil motor 34. The voice coil motor 34 and the driver chip 36 are both conventional components.

[0032] In this embodiment, Figure 3 As shown, the lens assembly 14 includes a lens 142, a filter 144 and an image sensor 146 connected in sequence. The end of the image sensor 146 away from the filter 144 is set to the side of the first substrate 16 away from the second substrate 18. The filter 144 is located in the through hole of the third substrate 32, and the lens 142 is located in the accommodating cavity 342 of the voice coil motor 34. The image sensor 146 is electrically connected to the main control module 22. The image sensor 146 is used to collect images transmitted through the lens 142 and the filter 144. When the collected image is not clear, the image sensor 146 will use the I2C communication protocol to give a driving signal to the driver chip 36 through the main control module 22, so that the driver chip 36 outputs current to the voice coil motor 34, so that the voice coil motor 34 drives the lens assembly 14 to move to the best focus point, thereby realizing automatic focus.

[0033] Furthermore, the endoscope camera of the present invention further includes an infrared lamp 38 and a white light lamp 42 disposed on a side of the third substrate 32 close to the waterproof lens 122. The infrared lamp 38 and the white light lamp 42 are both electrically connected to the FPGA module 22. By turning on the infrared lamp 38 for fill light, the lens assembly 14 can collect black and white images, and by turning on the white light lamp 42 for fill light, the lens assembly 14 can collect color images, so that the endoscope camera of the present invention can collect color images as well as black and white images. The FPGA module 22 can control the opening or closing of the infrared lamp 38 and the white light lamp 42.

[0034] The infrared lamp 38 and the white light lamp 42 are both LED lamps. In this embodiment, there are two infrared lamps 38 and two white light lamps 42, which are respectively located on both sides of the front end of the lens assembly 14 and on both sides of the voice coil motor 34. It can be understood that the number of infrared lamps 38 and white light lamps 42 can also be other, which can be set according to actual conditions.

[0035] Furthermore, the endoscope camera of the present invention also includes an acceleration sensor arranged on the second substrate 18, and the acceleration sensor is used to detect the acceleration of the X-axis, Y-axis and Z-axis of the endoscope camera and output the detected three-axis acceleration to the FPGA module 22. The FPGA module 22 is used to calculate the spatial angle of the endoscope camera according to the received three-axis acceleration, and compensate the angle of the output image according to the calculated spatial angle, so that the direction of the output image is always in one direction, which is convenient for the user to observe and is conducive to the analysis and diagnosis of the detected object.

[0036] The FPGA module 22 is located on one side of the second substrate 18 , and the distance sensor 24 , the temperature sensor 26 , the USB interface 28 , the alarm module 262 , and the acceleration sensor are located on the other side of the second substrate 18 .

[0037] In this embodiment, the rear end of the housing 12 is threadedly connected with a tail piece, one end of the second substrate 18 contacts a surface of the first substrate 16 close to the second substrate 16, and the other end protrudes from the rear end of the housing 12 and is accommodated in the tail piece. The tail piece is used to install cables, handles, etc.

[0038] Preferably, the outer shell 12 and the tail piece are both metal pieces, which can increase the strength of the endoscope camera head and extend the service life of the endoscope camera head.

[0039] The invention has reasonable layout and compact structure, can realize multiple functions, and greatly meets the use requirements.

[0040] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A multifunctional endoscope camera head, comprising a housing, wherein a waterproof lens is provided at the front end of the housing, characterized in that: It also includes a lens assembly, a first substrate, a second substrate, an FPGA module and a USB interface arranged in the housing, the first substrate and the second substrate are arranged in sequence along the direction from the front end to the rear end of the housing, the rear end of the lens assembly is arranged on a side of the first substrate away from the second substrate, the front end of the lens assembly is opposite to the waterproof lens, the FPGA module and the USB interface are both arranged on the second substrate, and the lens assembly and the USB interface are both electrically connected to the FPGA module; The lens assembly is used to collect two consecutive frames of images of the detected object and output the collected two consecutive frames of images to the FPGA module; The FPGA module is used to intercept and enlarge the middle part of the received previous frame image to obtain an intermediate image, and to superimpose the obtained intermediate image with the received next frame image to obtain a composite image and output the obtained composite image to the display device of the endoscope through the USB interface for display; Also included is a distance sensor disposed on the second substrate, the distance sensor being electrically connected to the FPGA module; The distance sensor is used to detect the distance between the endoscope camera and the detected object and output the detected distance to the FPGA module; The FPGA module is used to output the received distance between the endoscope camera and the detected object to the display device of the endoscope through the USB interface for display.

2. The multifunctional endoscope camera head according to claim 1, characterized in that: The FPGA module is also used to count the number of pixels of the received next frame of image, and calculate the outline size of the detected object based on the counted number of pixels and the received distance between the endoscope camera and the detected object, and to output the calculated outline size of the detected object to the display device of the endoscope through the USB interface, and display it in the form of a ruler through the display device of the endoscope.

3. The multifunctional endoscope camera head according to claim 1, characterized in that: Also included is a temperature sensor disposed on the second substrate, the temperature sensor being electrically connected to the FPGA module; The temperature sensor is used to detect the temperature inside the endoscope camera head and output the detected temperature to the FPGA module; The FPGA module is used to output the received internal temperature of the endoscope camera head to the display device of the endoscope through the USB interface for display.

4. The multifunctional endoscope camera head according to claim 3, characterized in that: It also includes an alarm module set to the second substrate, the alarm module is electrically connected to the FPGA module, and the FPGA module is also used to compare the received internal temperature of the endoscope camera with a preset alarm temperature threshold. When the internal temperature of the endoscope camera is greater than the preset alarm temperature threshold, the FPGA module controls the alarm module to issue an alarm.

5. The multifunctional endoscope camera head according to claim 1, characterized in that: It also includes a third substrate arranged in the housing, the third substrate is located between the waterproof lens and the first substrate, the third substrate has a through hole, the front end of the lens assembly passes through the through hole and is located between the waterproof lens and the third substrate.

6. The multifunctional endoscope camera head according to claim 5, characterized in that: It also includes a voice coil motor and a driving chip which are arranged on a side of the third substrate close to the waterproof lens, the front end of the lens assembly is accommodated in the accommodating cavity of the voice coil motor, the voice coil motor is electrically connected to the driving chip, and the driving chip is electrically connected to the FPGA module; the voice coil motor is used to drive the lens assembly to move forward and backward along the axis of the endoscope camera to achieve focusing, and the driving chip is controlled by the FPGA module to control the operation of the voice coil motor.

7. The multifunctional endoscope camera head according to claim 5, characterized in that: It also includes an infrared lamp and a white light lamp which are arranged on a side of the third substrate close to the waterproof lens, and the infrared lamp and the white light lamp are electrically connected to the FPGA module.

8. The multifunctional endoscope camera head according to claim 1, characterized in that: The front inner wall of the housing is provided with a mounting groove, and the waterproof lens is arranged in the mounting groove.

9. The multifunctional endoscope camera head according to claim 1, characterized in that: The shell is a metal part.

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