CN112218042B - SDI signal transmission system, transmission method, electronic endoscope and storage medium - Google Patents
SDI signal transmission system, transmission method, electronic endoscope and storage medium Download PDFInfo
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- CN112218042B CN112218042B CN202010923727.2A CN202010923727A CN112218042B CN 112218042 B CN112218042 B CN 112218042B CN 202010923727 A CN202010923727 A CN 202010923727A CN 112218042 B CN112218042 B CN 112218042B
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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
- H04N23/50—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
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
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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
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses an SDI signal transmission system, which comprises a transmission end, a receiving end and a coaxial cable for connecting the transmission end and the receiving end, wherein a power signal, an image signal and a control information signal are transmitted in the coaxial cable by adopting carrier mixing, the transmission end transmits the image information signal to the receiving end through the coaxial cable by an SDI protocol transmission unit, and a decoding modulator in the receiving end performs information decoding modulation on the image information signal transmitted by the transmission end; the method comprises the following steps: the transmission end transmits the image information signals to the receiving end through the coaxial cable by the SDI protocol transmission unit, and the power signals and the image and control information signals are transmitted in the coaxial cable in a carrier mixing mode. The power supply signal and the information sending and receiving signal are transmitted in the coaxial cable in a carrier mixing way, so that the number of cables is saved, and the problem that the cables are more and are easily interfered by medical high-frequency equipment is solved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an SDI signal transmission system, a transmission method, an electronic endoscope and a storage medium.
Background
Various connecting wires can exist between the current electronic endoscope and a display screen, so that the flat cable is complex and is easily interfered by signals of other equipment (high-frequency electrotome, plasma and the like) during operation. But also is easily interfered by other devices when the laparoscope and the otoscope are operated.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art. Therefore, an object of the present invention is to provide an SDI signal transmission system and a transmission method, which transmit an image information signal through a coaxial cable by using an SDI protocol transmission unit, and solve the problem of susceptibility to interference from other devices during transmission of a photographing signal.
The SDI signal transmission system comprises a transmission end, a receiving end and a coaxial cable for connecting the transmission end and the receiving end, wherein a power signal, an image signal and a control information signal are transmitted in the coaxial cable in a carrier mixing mode, the transmission end transmits the image information signal to the receiving end through the coaxial cable by an SDI protocol transmission unit, and a decoding modulator in the receiving end performs information decoding modulation on the image information signal sent by the transmission end.
In some embodiments of the present invention, the transmission end includes a packaging unit, a CMOS device group, a lighting lamp group, an image signal processing unit, an image signal encoding unit, an SDI protocol transmission unit, a DC-DC converter, and a signal processing chip, the CMOS device group and the lighting lamp group are disposed at the front end of the packaging unit in an evenly-staggered manner, the image signal processing unit, the image signal encoding unit, the DC-DC converter, and the signal processing chip are disposed in the packaging unit, the image signal processing unit receives and processes the shooting information of the CMOS device group, the image signal processing unit transmits the information to the image signal encoding unit and transmits the information to the signal processing chip for processing, the processed information is transmitted to the coaxial cable through the SDI protocol transmission unit, and the signal processing chip transmits the electric energy to the CMOS device group and the lighting lamp group through the DC-DC converter.
In other embodiments of the present invention, the package unit includes a semispherical end and a cylindrical package, six CMOS devices are disposed at a position where the cylindrical package is connected to the semispherical end and are equally distributed around the cylindrical package, one CMOS device is disposed at the top of the semispherical end, four CMOS devices are disposed around the semispherical end at the middle of the semispherical end, and the illumination lamps in the illumination lamp set are distributed in the gaps between the CMOS devices.
In other embodiments of the present invention, the coaxial cable includes a positive core wire and a negative core wire, the positive core wire includes an insulating layer thereon, and the negative core wire is wrapped with a sheath layer thereon.
In other embodiments of the present invention, the receiving end includes an information receiving module, a modem, an image decoding chip, and an image display and storage unit, where the information receiving module receives an image information signal transmitted by a coaxial cable, sends the image information signal to the modem for information demodulation, and then transmits the image information signal to the image decoding chip, and the image decoding chip sends the demodulated image information signal to the image display and storage unit.
A SDI signal transmission method comprises the following specific transmission methods: the method comprises the steps that a transmission end transmits image information signals to a receiving end through a SDI protocol transmission unit through a coaxial cable, power signals, the images and control information signals are transmitted in the coaxial cable in a carrier mixing mode, and a decoding modulator in the receiving end performs information decoding modulation on the image information signals sent by the transmission end.
In other embodiments of the present invention, the transmission end includes a CMOS device group, an image signal processing unit, an image signal encoding unit, an SDI protocol transmission unit, a DC-DC converter, and a signal processing chip, the CMOS device group photographs its surrounding environment and illuminates its photographed environment with an illumination lamp group, the CMOS device group photographs picture information and sends it to the image signal processing unit, the image signal processing unit processes the received photographed information and sends it to the image signal encoding unit, the information encoded by the image signal encoding unit performs SDI protocol transmission on the signal processing chip to the coaxial cable.
In other embodiments of the present invention, the receiving end includes an information receiving module, a modem, an image decoding chip, and an image display and storage unit, the coaxial cable sends the mixed signal to the information receiving module for reception, sends the mixed signal to the modem for information demodulation, and transmits the demodulated image information to the image decoding chip, and the image decoding chip sends the demodulated image information to the image display and storage unit.
An electronic endoscope for transmitting SDI signals comprises the SDI signal transmission system and adopts the SDI signal transmission method to acquire images.
A storage medium can be read and executed by a computer processor, and the SDI signal transmission method can be realized when the computer processor is executed.
In the invention, the power supply signal and the information sending and receiving signal are transmitted in a coaxial cable in a carrier wave mixing way, the functions of a power line and a control line are realized simultaneously through one cable, and the number of the cables is saved, thereby solving the problem that the image display is unclear because the cables are more and are easily interfered by medical high-frequency equipment (high-frequency electrotome, plasma and the like) during operation. The CMOS device on the encapsulation unit of the shooting head of the electronic endoscope is divided equally and is arranged on the front end head, the periphery of the electronic endoscope can be shot, excessive overturning movement is not needed, shooting can be completed, pain of a patient is reduced, and the illuminating lamp group is also divided equally on the front end head and can illuminate the periphery comprehensively, so that the shooting can be all-round.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a transmission circuit of an SDI signal transmission system according to the present invention.
Fig. 2 is a schematic diagram of the package unit with the CMOS device set and the lighting lamp set connected to a coaxial cable according to the present invention.
In the figure: 1. a packaging unit; 2. a semi-spherical end portion; 21. a CMOS device group; 22. a set of lighting lamps; 3. a cylindrical package body; 4. a coaxial cable; 41. a positive electrode core wire; 42. and a negative electrode layer wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The invention provides an SDI signal transmission system, which comprises a transmission end, a receiving end and a coaxial cable for connecting the transmission end and the receiving end, wherein a power signal, an image signal and a control information signal are transmitted in the coaxial cable in a carrier mixing way, the transmission end transmits the image information signal to the receiving end through an SDI protocol transmission unit, and a decoding modulator in the receiving end performs information decoding modulation on the image information signal transmitted by the transmission end.
The transmission end comprises a packaging unit 1, a CMOS device group 21, a lighting lamp group 22, an image signal processing unit, an image signal coding unit, an SDI protocol transmission unit, a DC-DC converter and a signal processing chip, wherein the CMOS device group 21 and the lighting lamp group 22 are arranged at the front end of the packaging unit 1 in an evenly-staggered mode, the image signal processing unit, the image signal coding unit, the DC-DC converter and the signal processing chip are all arranged in the packaging unit 1, the image signal processing unit receives shooting information of the CMOS device group 21, the image signal processing unit sends the information to the image signal coding unit to be coded and then transmitted to the signal processing chip to be processed, the processed information is transmitted to the coaxial cable 4 through the SDI protocol transmission unit, the signal processing chip is connected with the coaxial cable (can be connected in a plugging mode), and the signal processing chip transmits electric energy to the CMOS device group 21 and the lighting lamp group 22 through the DC-DC converter.
The transmission end comprises a camera and a handheld handle, a CMOS device group 21 and a lighting lamp group 22 are arranged in the camera, an optical transmission channel is arranged between the camera and the handheld handle, the length of the optical transmission channel is about 30-40cm, an image signal processing unit, an image signal coding unit, an SDI protocol transmission unit, a DC-DC converter and a signal processing chip are arranged in the handheld handle, and the coaxial cable 4 is connected to the signal processing chip in the handheld handle in a plugging and pulling mode.
The lighting lamp group 22 is started, the lighting lamp group 22 illuminates the stomach around, the CMOS device group 21 can shoot the surrounding environment, each CMOS device is spliced to form the information of the stomach panorama of a shooting area, then the information is sent to the image signal processing unit, the image signal coding unit codes the information, finally the signal processing chip processes the information, and the processed information is transmitted to the coaxial cable through the SDI protocol transmission unit.
The CMOS device group 21 and the lighting lamp group 22 transmit power to a DC-DC converter through a signal processing chip, and the DC-DC converter supplies power to each CMOS device and the lighting lamp.
High fidelity (high definition image), no delay transmission, good shielding property by using the coaxial cable 4, and no interference of medical high-frequency equipment (high-frequency electrotome, plasma and the like); the coaxial cable 4 consists of an inner wire and an outer wire, and has the characteristics of easy medical disinfection and plugging, long service life, good stability and the like.
The coaxial cable 4 is designed to be capable of taking pictures of the stomach and the abdominal cavity, the power signal wire and the information sending and receiving wire in the coaxial cable 4 are wrapped by one wrapping wire, and the power signal wire and the information sending and receiving wire are transmitted in a mixed mode, so that the number of cables is reduced, and the coaxial cable 4 transmitted by the gastroscope is thinner than that of the traditional coaxial cable 4. Less interference from other devices. The imaging is clearer.
The receiving end comprises an information receiving module, a modem, an image decoding chip and an image display and storage unit, the information receiving module receives an image information signal transmitted by the coaxial cable 4, sends the image information signal to the modem for information demodulation and then transmits the image information signal to the image decoding chip, and the image decoding chip sends the demodulated image information to the image display and storage unit. The image display and storage unit comprises a display device, a storage device and a plurality of online conference screens.
The modem modulates and demodulates the power supply signal and the shooting signal, and the shooting information modulated and demodulated is processed by the image decoding chip to form an image which can be displayed and is displayed through image display.
A SDI signal transmission method comprises the following specific transmission methods:
1) The CMOS device group 21 shoots the surrounding environment and illuminates the shooting environment with the illumination lamp group 22, the CMOS device group 21 shoots picture information and sends the picture information to the image signal processing unit, the image signal processing unit sends the received information to the image signal coding unit, the information coded by the image signal coding unit is transmitted to the coaxial cable through an SDI protocol transmission unit on the signal processing chip, and the signal processing chip transmits electric energy to the CMOS device group 21 and the illumination lamp group 22 through a DC-DC converter;
2) The power supply signal and the information sending and receiving signal are transmitted in a coaxial cable in a carrier mixing way;
3) The coaxial cable sends the mixed signal to an information receiving module and a modem for information demodulation and then transmits the demodulated image information to an image decoding chip, and the image decoding chip processes the demodulated image information and transmits the processed image information to an image display and storage unit.
An electronic endoscope comprises the SDI signal transmission system structure and adopts the SDI signal transmission method to transmit data.
When the stomach and the abdominal cavity are shot, the coaxial cable and the coaxial cable are mixed for use.
The SDI signal transmission method is stored in a storage medium, the storage medium can be read and executed by a computer processor, and the computer processor can realize the SDI signal transmission method when executing.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. An SDI signal transmission system for an electronic endoscope, comprising: the image decoding and modulating device comprises a transmission end, a receiving end and a coaxial cable for connecting the transmission end and the receiving end, wherein a power signal, an image signal and a control information signal are transmitted in the coaxial cable in a carrier mixing way, the transmission end transmits the image information signal to the receiving end through an SDI protocol transmission unit, and a decoding modulator in the receiving end performs information decoding and modulation on the image information signal sent by the transmission end;
the transmission end comprises a camera and a handheld handle, and the coaxial cable is connected to a signal processing chip in the handheld handle in a plugging mode;
the transmission terminal also comprises a packaging unit, a CMOS (complementary metal oxide semiconductor) device group, a lighting lamp group, an image signal processing unit, an image signal coding unit, an SDI (serial digital interface) protocol transmission unit, a DC-DC (direct current-direct current) converter and a signal processing chip, wherein a COMS (complementary metal oxide semiconductor) device group and a lighting lamp group are arranged in the camera, the image signal processing unit, the image signal coding unit, the SDI protocol transmission unit, the DC-DC converter and the signal processing chip are arranged in the handheld handle, an optical transmission channel is arranged between the camera and the handheld handle, and the SDI protocol transmission unit is arranged on the signal processing chip;
the image signal processing unit receives and processes shooting information of the CMOS device group, the image signal processing unit sends the information to the image signal coding unit, the information is coded and then transmitted to the signal processing chip to be processed, the processed information is transmitted to the coaxial cable through the SDI protocol transmission unit, and the signal processing chip transmits electric energy to the CMOS device group and the lighting lamp group through the DC-DC converter.
2. The SDI signal transmission system of claim 1 wherein: the encapsulation unit includes hemisphere tip and cylindric packaging body meets the position with the hemisphere tip and is equipped with six CMOS devices around cylindric packaging body a week is impartial to be distributed, the top of hemisphere tip is equipped with a CMOS device to be equipped with four CMOS devices around hemisphere a week at the middle part of hemisphere tip, and the setting of distributing in the clearance of CMOS device is put to the light among the lighting lamp group.
3. The SDI signal transmission system of claim 1 wherein: the coaxial cable is characterized in that a layer of negative layer wire is arranged outside an anode core wire, an insulating layer is arranged on the anode core wire, and a sheath layer is wrapped on the negative layer wire.
4. The SDI signal transmission system of claim 1 wherein: the receiving end comprises an information receiving module, a modem, an image decoding chip and an image display and storage unit, wherein the information receiving module receives an image information signal transmitted by a coaxial cable, sends the image information signal to the modem for information demodulation and then transmits the image information signal to the image decoding chip, and the image decoding chip sends the demodulated image information to the image display and storage unit.
5. An SDI signal transmission method is used for an electronic endoscope, and is characterized in that: the specific transmission method is as follows: the method comprises the steps that a transmission terminal transmits image information signals to a receiving terminal through a SDI protocol transmission unit through a coaxial cable, power signals, images and control information signals are transmitted in the coaxial cable in a mixed mode through carrier waves, and a decoding modulator in the receiving terminal carries out information decoding modulation on the image information signals transmitted by the transmission terminal; the transmission end comprises a camera and a handheld handle, and the coaxial cable is connected to a signal processing chip in the handheld handle in a plugging and pulling mode;
the transmission terminal further comprises a CMOS device group, a lighting lamp group, an image signal processing unit, an image signal coding unit, an SDI protocol transmission unit, a DC-DC converter and a signal processing chip, the COMS device group and the lighting lamp group are arranged in the camera, the image signal processing unit, the image signal coding unit, the SDI protocol transmission unit, the DC-DC converter and the signal processing chip are arranged in the handheld handle, an optical transmission channel is arranged between the camera and the handheld handle, and the SDI protocol transmission unit is arranged on the signal processing chip;
the CMOS device group shoots the surrounding environment and illuminates the shooting environment by using an illuminating lamp group, the image information shot by the CMOS device group is sent to an image signal processing unit, the image signal processing unit processes the received shooting information and sends the processed shooting information to an image signal coding unit, the information coded by the image signal coding unit executes SDI protocol on a signal processing chip and transmits the SDI protocol to a coaxial cable, and the signal processing chip transmits electric energy to the CMOS device group and the illuminating lamp group through a DC-DC converter.
6. The SDI signal transmission method of claim 5 wherein: the receiving end comprises an information receiving module, a modem, an image decoding chip and an image display and storage unit, the coaxial cable sends the mixed signal to the information receiving module for receiving, sends the mixed signal to the modem for information demodulation and then transmits the demodulated mixed signal to the image decoding chip, and the image decoding chip sends the demodulated image information to the image display and storage unit.
7. An electronic endoscope for SDI signal transmission is characterized in that: an SDI signal transmission system comprising any one of claims 1-4.
8. A computer-readable storage medium characterized by: the computer-readable storage medium stores a computer program which, when executed, implements the SDI signal transmission method according to any one of claims 5 to 6.
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| CN202010923727.2A CN112218042B (en) | 2020-09-04 | 2020-09-04 | SDI signal transmission system, transmission method, electronic endoscope and storage medium |
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| CN112218042B true CN112218042B (en) | 2023-04-07 |
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| CN203261418U (en) * | 2013-03-21 | 2013-10-30 | 绍兴奥顿电子有限公司 | Ethernet coaxial cable converter |
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