CN210075242U - Optical communication structure and electronic endoscope system - Google Patents
Optical communication structure and electronic endoscope system Download PDFInfo
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- CN210075242U CN210075242U CN201921174533.6U CN201921174533U CN210075242U CN 210075242 U CN210075242 U CN 210075242U CN 201921174533 U CN201921174533 U CN 201921174533U CN 210075242 U CN210075242 U CN 210075242U
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Abstract
The utility model provides an optical communication structure and electron endoscope system, wherein optical communication structure includes the electro-optical conversion unit of being connected with signalling main part output, the different signal of telecommunication that the electro-optical conversion unit sent this main part converts the light signal of different wavelengths into, amplitude phase modulation module input is connected to electro-optical conversion unit output, the optical multiplexer ware input is connected to amplitude phase modulation module output, the first end of optic fibre is connected to the optical multiplexer ware output, the optical divider is connected to the second end of optic fibre, coherent light detection demodulator input is connected to the optical divider output, the photoelectric conversion unit input of connecting, the signal reception main part is connected to the photoelectric conversion unit, the optical signal that the photoelectric conversion unit will not be different wavelengths converts the signal of telecommunication into behind the signal of telecommunication sends to the signal reception main part. The optical communication structure can directly perform various signal compensation processing by adopting a coherent light technology.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to optical communication structure and electronic endoscope system.
Background
Currently, in the field of medical endoscopes, the view in a cavity is taken by an endoscope body with a camera, processed by a processing device and displayed on a display. The image shot by the camera is generally transmitted to the processing device through the metal conducting wire, in order to solve the problem of electromagnetic interference, improve the channel bandwidth and realize the whole water resistance of the mirror body, light is used for replacing electricity to transmit the image signal, but the image signal and the control signal of the mirror body in the prior art are transmitted by being divided into different paths, for example, the image signal is transmitted by first light, and the control signal is transmitted by electricity/second light. Thus, two physical transmission paths exist in the mirror body, and the devices are also divided into two groups of devices, which is unfavorable for the small size and the simple structure of the mirror body.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the present invention provides an optical communication structure and an electronic endoscope system.
In order to achieve the above object of the present invention, the present invention provides an optical communication structure, which comprises an electro-optical conversion unit connected to the output end of a signal transmission main body, the electro-optical conversion unit converts various types of different electric signals emitted by the main body into optical signals with different wavelengths in a one-to-one correspondence, the output end of the electro-optical conversion unit is connected with the input end of the amplitude phase modulation module, the output end of the amplitude phase modulation module is connected with the input end of the optical multiplexer, the output end of the optical combiner is connected with the first end of the optical fiber, the second end of the optical fiber is connected with the optical splitter, the output end of the optical branching filter is connected with the input end of a coherent light detection demodulator, the output end of the coherent light detection demodulator is connected with the input end of a photoelectric conversion unit, the photoelectric conversion unit is connected with the signal receiving main body, converts optical signals with different wavelengths into electric signals and then sends the electric signals to the signal receiving main body.
The optical communication structure can directly perform various signal compensation processes by adopting a coherent light technology, such as chromatic dispersion compensation and polarization mode dispersion compensation, while incoherent light communication needs to perform dispersion compensation and other operations through an optical path compensation device.
The optical communication structure can be used in various fields, such as the field of medical instruments, can improve the transmission capacity when being applied to the signal transmission of an endoscope in the medical instrument, and simultaneously reduces the transmission path of signals due to the fact that multiple paths of signals are coupled into one path of optical signals, thereby being beneficial to the small size and the simple structure of the endoscope body.
The utility model also provides an electronic endoscope system based on above-mentioned optical communication structure, including the mirror body and processing unit, still include the first electro-optical conversion unit of being connected with the signal output part of the mirror body, first electro-optical conversion unit converts the heterogeneous electric signal of mirror body output into the light signal of different wavelength, first electro-optical conversion unit output connects first amplitude phase modulation module input, first amplitude phase modulation module output connects the first optical multiplexer input, the first optical multiplexer output connects mirror body side optic fibre, mirror body side optic fibre connects one end of optical connector, the optical connector other end connects processing unit side optic fibre, processing unit side optic fibre connects first optical multiplexer, first optical multiplexer output connects first coherent light detection demodulator input, first coherent light detection demodulator output connects first electro-optical conversion unit input, the first photoelectric conversion unit is connected with the processing unit, converts optical signals with different wavelengths into electric signals and then sends the electric signals to the processing unit;
the signal output end of the processing unit is connected with a second electro-optical conversion unit which converts different types of electric signals sent by the processing unit into optical signals with different wavelengths, the output end of the second electro-optical conversion unit is connected with the input end of a second amplitude phase modulation module, the output end of the second amplitude phase modulation module is connected with the input end of a second optical combiner, the output end of the second optical multiplexer is connected with a processing unit side optical fiber, the processing unit side optical fiber is connected with the optical connector, the optical connector is connected with the optical fiber at the side of the lens, the optical fiber at the side of the lens is connected with a second optical branching filter, the output end of the second optical branching filter is connected with the input end of a second coherent light detection demodulator, the output end of the second coherent light detection demodulator is connected with the input end of a second photoelectric conversion unit, and the second photoelectric conversion unit converts optical signals with different wavelengths into electric signals and then sends the electric signals to the instruction execution unit of the mirror body.
The electronic endoscope system converts signals to be transmitted into optical signals with different wavelengths, then combines the optical signals into a path of light, modulates amplitude and phase into coherent light, performs wave splitting processing on the received optical signals during receiving, performs coherent light demodulation, separates out optical signals with various wavelengths, reduces transmission paths of the signals, is beneficial to small volume and simple structure of the endoscope body, can directly perform compensation processing on various signals transmitted by the endoscope body and the processing unit by adopting the coherent light technology, such as chromatic dispersion compensation and polarization mode dispersion compensation, and simultaneously utilizes polarization, amplitude, phase and frequency of the coherent light communication to bear more modulation information, thereby expanding transmission capacity and avoiding congestion when the endoscope body and the processing unit transmit more signals.
Preferred embodiments of the electronic endoscope system: the optical communication system also comprises a first optical monitoring channel device, a second optical monitoring channel device and an optical communication management unit; the optical signal transmitting end of the first optical monitoring channel device is connected with the input end of the first optical multiplexer, and the optical signal receiving end of the first optical monitoring channel device is connected with the output end of the second optical multiplexer; the optical signal transmitting end of the second optical monitoring channel device is connected with the input end of the second optical multiplexer, and the optical signal receiving end of the second optical monitoring channel device is connected with the output end of the first optical demultiplexer; the optical communication management unit is connected with the first optical monitoring channel device, the second optical monitoring channel device and the processing unit. This ensures the accuracy of the signal transmission.
Preferred embodiments of the electronic endoscope system: the first amplitude phase modulation module comprises N first amplitude phase modulators, wherein N is a positive integer not less than the number of signal types output by the mirror body;
the second amplitude phase modulation module comprises M second amplitude phase modulators, wherein M is a positive integer not less than the number of signal types output by the processing unit. This ensures that each optical signal can have an amplitude phase modulator corresponding to it and only corresponding to it.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic data flow diagram of a mirror to processing unit;
fig. 2 is a schematic diagram of the data flow from the processing unit to the mirror.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The utility model provides an optical communication structure, which comprises an electro-optical conversion unit connected with the output end of a signal transmission main body, the electro-optical conversion unit converts various types of different electric signals emitted by the main body into optical signals with different wavelengths in a one-to-one correspondence, the output end of the electro-optical conversion unit is connected with the input end of the amplitude phase modulation module, the output end of the amplitude phase modulation module is connected with the input end of the optical multiplexer, the output end of the optical combiner is connected with the first end of the optical fiber, the second end of the optical fiber is connected with the optical splitter, the output end of the optical branching filter is connected with the input end of a coherent light detection demodulator, the output end of the coherent light detection demodulator is connected with the input end of a photoelectric conversion unit, the photoelectric conversion unit is connected with the signal receiving main body, converts optical signals with different wavelengths into electric signals and then sends the electric signals to the signal receiving main body.
In this embodiment, the optical multiplexer and the optical demultiplexer preferably but not limited to adopt an optical multiplexer/demultiplexer with a model number of 303SM32LSP, and the electro-optical conversion unit preferably but not limited to include one or more electro-optical conversion chips with a model number of ADN 2841; the photoelectric conversion unit preferably, but not limited to, includes one or more S5927 type photodiodes; the amplitude phase modulation module preferably but not exclusively comprises one or more EP4CE22F17C6 chips, and the coherent light detection demodulator preferably but not exclusively comprises one or more coherent receivers of model CPRV 1220.
Various signal compensation processes can be directly carried out by adopting a coherent light technology, such as chromatic dispersion compensation and polarization mode dispersion compensation, while incoherent light communication needs to carry out dispersion compensation and other operations through an optical path compensation device. Coherent optical communication uses the polarization, amplitude, phase and frequency of the optical wave to carry more modulation information, thereby expanding the transmission capacity.
The optical multiplexer and the optical demultiplexer can be composed of optical fibers, optical splitting elements and a collimation and focusing system. The utility model discloses the preferred photon integration technology that adopts, for example planar optical waveguide technique etc. both can adopt passive photon integration technology, also can adopt active photon integration technology.
In order to ensure the accuracy of optical communication, the optical communication structure also comprises an optical monitoring generator and an optical monitoring receiver; the optical monitoring generator is connected with the input end of the optical multiplexer, and the optical monitoring receiver is connected with the output end of the optical demultiplexer; the optical monitoring generator and the optical monitoring receiver are respectively connected with an optical communication management module, and the optical communication management module is connected with the processing unit.
The optical communication management module can judge whether optical communication has an optical communication fault by judging whether an optical monitoring signal sent by the optical monitoring generator and an optical monitoring signal received by the optical monitoring receiver are in frame synchronization, or judge whether the optical communication has the optical communication fault by CRC (cyclic redundancy check), or judge whether the optical communication has the optical communication fault by detecting the light intensity, and the above judging modes can be used simultaneously and are the prior art. When the optical communication is in fault, the optical communication management module can adopt the prior art to control the optical path transmission, such as improving the power of a light emitting device of an optical monitoring generator and improving the fault tolerance; the optical communication management module can also send the fault information and/or the processing information to the processing unit, and the processing unit performs corresponding alarm processing and/or fault processing.
Because the optical signal is lost in the transmission process, the output end of the optical multiplexer is connected with the input end of the optical power amplifier, and the output end of the optical power amplifier is connected with the first end of the optical fiber; the second end of the optical fiber is connected with the input end of the preamplifier, and the output end of the preamplifier is connected with the optical branching filter to make up for the loss of the optical signal in the transmission process.
As shown in fig. 1 and fig. 2, the present invention provides an electronic endoscope system, which comprises a scope body, a processing unit, and a first electro-optical conversion unit connected to a signal output end of the scope body, wherein the signal output by the scope body includes an image signal and a scope signal, the first electro-optical conversion unit converts different types of electrical signals output by the scope body into optical signals with different wavelengths, an output end of the first electro-optical conversion unit is connected to an input end of a first amplitude-phase modulation module, an output end of the first amplitude-phase modulation module is connected to an input end of a first optical multiplexer, an output end of the first optical multiplexer is connected to an optical fiber on the side of the scope body, the optical fiber on the side of the scope body is connected to one end of an optical connector, the other end of the optical connector is connected to an optical fiber on the side of the processing unit, the optical fiber on the side of the processing unit is connected to a first, the output end of the first coherent light detection demodulator is connected with the input end of a first photoelectric conversion unit, the first photoelectric conversion unit is connected with a processing unit, and the first photoelectric conversion unit converts optical signals with different wavelengths into electric signals and then sends the electric signals to the processing unit.
The first amplitude phase modulation module comprises N first amplitude phase modulators, wherein N is a positive integer not less than the number of signal types output by the mirror body, and optical signals with different wavelengths are transmitted to the corresponding first amplitude phase modulators for modulation.
The signal output by the processing unit comprises at least one control signal, the signal output end of the processing unit is connected with a second electro-optical conversion unit, the second electro-optical conversion unit converts different types of electric signals sent by the processing unit into optical signals with different wavelengths, the output end of the second electro-optical conversion unit is connected with the input end of a second amplitude phase modulation module, the output end of the second amplitude phase modulation module is connected with the input end of a second optical multiplexer, the output end of the second optical multiplexer is connected with the optical fiber at the processing unit side, the optical fiber at the processing unit side is connected with the optical connector, the optical connector is connected with the optical fiber at the lens side, the optical fiber at the lens side is connected with a second optical splitter, the output end of the second optical splitter is connected with the input end of a second coherent optical detection demodulator, and the output end of the second coherent optical detection, and the second photoelectric conversion unit converts the optical signals with different wavelengths into electric signals and then sends the electric signals to the instruction execution unit of the mirror body. The second amplitude phase modulation module comprises M second amplitude phase modulators, wherein M is a positive integer not less than the number of signal types output by the processing unit, and optical signals with different wavelengths are transmitted to the corresponding second amplitude phase modulators for modulation.
In this embodiment, the optical connector includes a mirror-side optical connector and a processing unit-side optical connector, the mirror-side optical connector is connected to the mirror-side optical fiber, the processing unit-side optical connector is connected to the processing unit-side optical fiber, and the mirror-side optical connector and the processing unit-side optical connector are mutually matched to realize optical signal transmission.
In order to ensure the accuracy of signal transmission, the optical communication structure of the endoscope host processing unit and the endoscope body further comprises a first optical monitoring channel device, a second optical monitoring channel device and an optical communication management unit. The optical signal transmitting end of the first optical monitoring channel device is connected with the input end of the first optical multiplexer, and the optical signal receiving end of the first optical monitoring channel device is connected with the output end of the second optical multiplexer; the optical signal transmitting end of the second optical monitoring channel device is connected with the input end of the second optical multiplexer, and the optical signal receiving end of the second optical monitoring channel device is connected with the output end of the first optical demultiplexer; the optical communication management unit is connected with the first optical monitoring channel device, the second optical monitoring channel device and the processing unit.
The optical communication management unit may determine whether an optical communication fault exists in the optical communication by determining whether frame synchronization of optical monitoring signals transmitted and received by the first optical monitoring channel device and the second optical monitoring channel device is performed, or determine whether an optical communication fault exists in the optical communication by CRC (cyclic redundancy check), or determine whether an optical communication fault exists in the optical communication by detecting the light intensity, which may be used simultaneously. When the optical communication is in fault, the optical communication management unit can adopt the prior art to control the optical path transmission, such as improving the power of the light emitting devices of the first optical monitoring channel device and the second optical monitoring channel device and improving the fault tolerance; the optical communication management unit can also send the fault information and/or the processing information to the processing unit, and the processing unit performs corresponding alarm processing and/or fault processing.
Because the optical signal is lost in the transmission process, the output end of the first optical combiner is connected with a first optical power amplifier, and the output end of the first optical power amplifier is connected with the optical fiber on the side of the lens; the optical fiber at the side of the processing unit is connected with the input end of a first preamplifier, and the output end of the first preamplifier is connected with a first optical branching filter; the output end of the second optical combiner is connected with the input end of a second optical power amplifier, and the output end of the second optical power amplifier is connected with the optical fiber at the side of the processing unit; the optical fiber on the side of the lens is connected with the input end of a second preamplifier, and the output end of the second preamplifier is connected with a second optical branching device.
Taking a specific example as an example: as shown in fig. 1, which is a data flow diagram from the endoscope body to the endoscope host processing unit/cold light source, an optical system in the endoscope body is processed by a CMOS to be converted into a digital electrical signal after imaging, and the digital electrical signal is sent to a first electro-optical conversion unit, and then is converted into an optical image signal with a wavelength I (for example, 1530nm) by the first electro-optical conversion unit; a nonvolatile data storage device in the mirror body such as a ferroelectric device, which stores mirror body information, which may be ID information, model information, etc., is converted by the first electro-optical conversion unit into an optical mirror body signal I of a wavelength II (for example, 1550 nm); sensor signals generated by various sensors in the lens body, such as a temperature sensor and a photosensitive sensor at the lens body head end, are converted into optical lens body signals II with wavelengths III (such as 1570nm) by a first electro-optical conversion device; each path of signal light is processed by the corresponding first amplitude phase modulator and then becomes coherent light with different amplitudes and phases, and then the coherent light is synthesized into a path of signal light by the first optical combiner and sent to the first optical power amplifier for amplification, and then the path of signal light is coupled to the optical fiber at the side of the mirror body for transmission.
The first optical monitoring channel device inserts an optical monitoring signal (with the wavelength of 1510nm) into the first optical multiplexer node, the wavelength of the optical monitoring signal is different from the wavelength of the optical signal in the main channel, the optical monitoring signal and the optical signal of the main channel are mixed and output, and the first optical monitoring channel simultaneously sends the optical monitoring signal to the optical communication management unit.
The optical connector enables transmission of the body-side optical signal to the processing unit-side optical signal, which is transmitted from the body-side optical connector to the opposing processing unit-side optical connector.
The first preamplifier amplifies the transmitted and attenuated optical signals, then separates the optical signals with specific wavelengths by using a first optical splitter for receiving, wherein, the optical monitoring signal is included, the light processed by the first optical demultiplexer is demodulated by the first coherent light detection demodulator, the optical image signal, the optical lens signal I and the optical lens signal II are separated, converted into electric signals by a first photoelectric conversion unit and processed by a processing unit, the image signal is finally displayed on the display unit, the optical monitoring signal is received by the second optical monitoring channel device, and sends it to the optical communication management unit, which judges whether there is fault in optical communication, when the optical communication is in fault, the optical communication management unit can control the optical path transmission, such as improving the power of a light emitting device of the first optical monitoring channel device and improving the fault tolerance; the optical communication management unit may also send the fault information and/or the processing information to the processing unit, and the processing unit performs corresponding alarm processing and/or fault processing.
As shown in fig. 2, for a data flow diagram of the endoscope host processing unit/cold light source to the scope, the processing unit sends out an electric control signal I, an electric control signal II, an electric control signal III, etc., such as a control signal for controlling the operation of the lens group in the scope head, a heating signal at the scope head, an optical communication management signal, etc., and the electric control signal I, the electric control signal II, the heating signal at the scope head, etc., are converted into an optical control signal I (for example, wavelength is 1450nm), an optical control signal II (for example, wavelength is 1470nm), and an optical control signal III (for example, wavelength is 1490nm) with different wavelengths by the second electro-optical conversion unit, and each of the signal light is processed by the second amplitude phase modulator to become coherent light with different amplitudes and phases, and the optical signals are synthesized by the second optical combiner, and one path of the optical.
The second optical monitoring channel device inserts the optical monitoring signal into the second optical multiplexer node, mixes the optical monitoring signal with the optical signal of the main channel and outputs the optical monitoring signal, and the second optical monitoring channel simultaneously sends the optical monitoring signal to the optical communication management unit.
The optical connector enables transmission of the processing unit side optical signal to the mirror side optical signal, which is transmitted from the processing unit side optical connector to the opposing mirror side optical connector.
The second preamplifier firstly amplifies the transmitted and attenuated optical signals, then utilizes the second optical splitter to separate the optical signals with specific wavelengths for receiving, wherein the optical signals comprise optical monitoring signals, the light processed by the second optical splitter is demodulated by the second coherent light detection demodulator, then optical control signals I, II and III are separated out and converted into electric signals by the second photoelectric conversion unit, the electric signals are respectively executed by the execution system in the mirror body by action I, action II and action III, the optical monitoring signals are received by the first optical monitoring channel device and sent to the optical communication management unit, the optical communication management unit judges whether the optical communication has faults or not, when the optical communication has no faults, the optical communication management unit carries out normal signal transmission, when the optical communication has faults, the optical communication management unit can control the optical path transmission, for example, the power of a light emitting device of the second optical monitoring channel device is improved, the fault tolerance is improved; the optical communication management unit may also send the fault information and/or the processing information to the processing unit, and the processing unit performs corresponding alarm processing and/or fault processing.
As shown in fig. 1 and 2, the bidirectional flow of signals is performed in the same optical path, and in this embodiment, dual-fiber unidirectional transmission (two optical fibers are used for signal transmission in two directions) or single-fiber bidirectional transmission (an optical path is transmitted in one optical fiber in two different directions at the same time, and the wavelengths of the bidirectional transmissions are separated from each other to realize full-duplex communication between two parties) may be used, and single-fiber bidirectional transmission is preferably used.
In this embodiment, the first amplitude phase modulator and the second amplitude phase modulator preferably but not limited to use EP4CE22F17C6 chips, and the first optical power amplifier and the second optical power amplifier preferably but not limited to use an operational amplifier with model number AD 8066; the first preamplifier and the second preamplifier are preferably, but not limited to, OPA847 amplifiers.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An optical communication structure is characterized by comprising an electro-optical conversion unit connected with an output end of a signal transmitting main body, the electro-optical conversion unit converts various types of different electric signals emitted by the main body into optical signals with different wavelengths in a one-to-one correspondence, the output end of the electro-optical conversion unit is connected with the input end of the amplitude phase modulation module, the output end of the amplitude phase modulation module is connected with the input end of the optical multiplexer, the output end of the optical combiner is connected with the first end of the optical fiber, the second end of the optical fiber is connected with the optical splitter, the output end of the optical branching filter is connected with the input end of a coherent light detection demodulator, the output end of the coherent light detection demodulator is connected with the input end of a photoelectric conversion unit, the photoelectric conversion unit is connected with the signal receiving main body, converts optical signals with different wavelengths into electric signals and then sends the electric signals to the signal receiving main body.
2. The optical communication structure of claim 1, further comprising an optical supervisory generator and an optical supervisory receiver;
the optical monitoring generator is connected with the input end of the optical multiplexer, and the optical monitoring receiver is connected with the output end of the optical multiplexer;
the optical monitoring generator and the optical monitoring receiver are respectively connected with an optical communication management module, and the optical communication management module is connected with the processing unit.
3. The optical communication structure of claim 1, wherein the output of the optical combiner is connected to the input of an optical power amplifier, and the output of the optical power amplifier is connected to the first end of the optical fiber;
and the second end of the optical fiber is connected with the input end of a preamplifier, and the output end of the preamplifier is connected with an optical branching filter.
4. An electronic endoscope system based on the optical communication structure of claim 1, comprising a scope body and a processing unit, further comprising a first electro-optical conversion unit connected to the signal output end of the scope body, wherein the first electro-optical conversion unit converts different types of electrical signals output by the scope body into optical signals with different wavelengths, the output end of the first electro-optical conversion unit is connected to the input end of a first amplitude-phase modulation module, the output end of the first amplitude-phase modulation module is connected to the input end of a first optical combiner, the output end of the first optical combiner is connected to the optical fiber at the side of the scope body, the optical fiber at the side of the scope body is connected to one end of an optical connector, the other end of the optical connector is connected to the optical fiber at the side of the processing unit, the optical fiber at the side of the processing unit is connected to a first optical splitter, the output end of the first optical splitter is, the output end of the first coherent light detection demodulator is connected with the input end of a first photoelectric conversion unit, the first photoelectric conversion unit is connected with a processing unit, and the first photoelectric conversion unit converts optical signals with different wavelengths into electric signals and then sends the electric signals to the processing unit;
the signal output end of the processing unit is connected with a second electro-optical conversion unit which converts different types of electric signals sent by the processing unit into optical signals with different wavelengths, the output end of the second electro-optical conversion unit is connected with the input end of a second amplitude phase modulation module, the output end of the second amplitude phase modulation module is connected with the input end of a second optical combiner, the output end of the second optical multiplexer is connected with a processing unit side optical fiber, the processing unit side optical fiber is connected with the optical connector, the optical connector is connected with the optical fiber at the side of the lens, the optical fiber at the side of the lens is connected with a second optical branching filter, the output end of the second optical branching filter is connected with the input end of a second coherent light detection demodulator, the output end of the second coherent light detection demodulator is connected with the input end of a second photoelectric conversion unit, and the second photoelectric conversion unit converts optical signals with different wavelengths into electric signals and then sends the electric signals to the instruction execution unit of the mirror body.
5. The electronic endoscope system of claim 4, further comprising a first optical monitoring channelizer, a second optical monitoring channelizer, and an optical communication management unit;
the optical signal transmitting end of the first optical monitoring channel device is connected with the input end of the first optical multiplexer, and the optical signal receiving end of the first optical monitoring channel device is connected with the output end of the second optical multiplexer;
the optical signal transmitting end of the second optical monitoring channel device is connected with the input end of the second optical multiplexer, and the optical signal receiving end of the second optical monitoring channel device is connected with the output end of the first optical demultiplexer;
the optical communication management unit is connected with the first optical monitoring channel device, the second optical monitoring channel device and the processing unit.
6. The electronic endoscope system of claim 4, wherein the optical connector comprises a body-side optical connector and a processing unit-side optical connector, the body-side optical connector is connected to the body-side optical fiber, the processing unit-side optical connector is connected to the processing unit-side optical fiber, and the body-side optical connector and the processing unit-side optical connector are mutually engaged to realize optical signal transmission.
7. The electronic endoscope system of claim 4, wherein the scope output signal comprises an image signal and a scope signal; the signal output by the processing unit comprises at least one control signal.
8. The electronic endoscope system of claim 4, wherein the first amplitude phase modulation module comprises N first amplitude phase modulators, where N is a positive integer no less than the number of signal types output by the scope;
the second amplitude phase modulation module comprises M second amplitude phase modulators, wherein M is a positive integer not less than the number of signal types output by the processing unit.
9. The electronic endoscope system of claim 6, wherein the first optical combiner output is coupled to a first optical power amplifier input, the first optical power amplifier output being coupled to a scope side fiber;
the optical fiber at the side of the processing unit is connected with the input end of a first preamplifier, and the output end of the first preamplifier is connected with a first optical branching filter;
the output end of the second optical multiplexer is connected with the input end of a second optical power amplifier, and the output end of the second optical power amplifier is connected with the optical fiber at the side of the processing unit;
the optical fiber on the side of the lens is connected with the input end of a second preamplifier, and the output end of the second preamplifier is connected with a second optical branching filter.
10. The electronic endoscope system of claim 4, wherein single fiber bi-directional signal transmission is employed between the scope body and the processing unit.
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| CN112998627A (en) * | 2021-03-03 | 2021-06-22 | 重庆金山医疗器械有限公司 | Endoscope light flux automatic detection compensation method and endoscope system |
| WO2022087824A1 (en) * | 2020-10-27 | 2022-05-05 | 深圳迈瑞生物医疗电子股份有限公司 | Endoscope photographing system and image data transmission apparatus therefor |
| WO2022087823A1 (en) * | 2020-10-27 | 2022-05-05 | 深圳迈瑞生物医疗电子股份有限公司 | Endoscope photographing system and image data transmission apparatus therefor |
| WO2023124504A1 (en) * | 2021-12-30 | 2023-07-06 | 武汉迈瑞医疗技术研究院有限公司 | Endoscope photographic system, endoscope apparatus, and endoscope data transmission cable |
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2019
- 2019-07-25 CN CN201921174533.6U patent/CN210075242U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022087824A1 (en) * | 2020-10-27 | 2022-05-05 | 深圳迈瑞生物医疗电子股份有限公司 | Endoscope photographing system and image data transmission apparatus therefor |
| WO2022087823A1 (en) * | 2020-10-27 | 2022-05-05 | 深圳迈瑞生物医疗电子股份有限公司 | Endoscope photographing system and image data transmission apparatus therefor |
| CN112998627A (en) * | 2021-03-03 | 2021-06-22 | 重庆金山医疗器械有限公司 | Endoscope light flux automatic detection compensation method and endoscope system |
| WO2023124504A1 (en) * | 2021-12-30 | 2023-07-06 | 武汉迈瑞医疗技术研究院有限公司 | Endoscope photographic system, endoscope apparatus, and endoscope data transmission cable |
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