109results about "Optical transmission adaptations" patented technology

The application discloses a kind of based on dual optical fiber channel's airborne digital video transmission control system and method, belong to computer communication count field.The method includes collecting original video signal;According to the rule of odd-even row separation, video row data is distributed to odd row and even row buffer;Real-time monitoring buffer write state and maintaining write state parameter, according to field synchronization signal and write state parameter, alternately extract odd row video row data and even row video row data;The video row data extracted is framed respectively, then is sent in parallel by two independent optical fiber channels, and the sending timing of two channels is coordinated, frame alignment and interline alignment are maintained.The application can break through the bandwidth limit of single optical fiber channel, realize the real-time reliable transmission of high-resolution, high-frame-rate airborne digital video.

The utility model discloses a twelve-path multifunctional optical transceiver, which belongs to the technical field of digital signal transmission equipment, and comprises a shell, a main control module, a control assembly, an interface assembly and a display assembly, the interior of the shell is of a hollow structure, a power supply unit is arranged in the shell, the front side wall of the shell is provided with an exhaust outlet, and an exhaust fan is arranged at the exhaust outlet. The main control module is installed in the shell, the control assembly is installed in the shell, the interface assembly is installed on the rear side wall of the shell, two sets of power interfaces are arranged on the right side of the interface assembly, and the display assembly is installed on the front side wall of the shell and arranged on the right side of the exhaust fan. The problem that in the prior art, due to the fact that signal transmission equipment is single in interface type, transmission of different types of signals is difficult to achieve, and the requirements for high-bandwidth video transmission and network data transmission are difficult to meet at the same time is solved. The practicability of the equipment is improved, and the use scene of the equipment is enriched.

The utility model discloses a video conversion circuit of an optical waveguide display screen, which comprises an MCU, the data transmission end of the MCU is connected with the data transmission end of a level conversion module, the data transmission end of the level conversion module is connected with the data transmission end of an optical machine, and the data sending end of a high-speed differential transceiver LVDS is connected with the data receiving end of a filtering module LVDS. The LVDS data transmitting end of the filtering module is connected with the LVDS data receiving end of the video bridging chip U7, and the MIPI data transmitting end of the video bridging chip U7 is connected with the MIPI data receiving end of the optical machine. Signal conversion and display can be stably carried out.

The utility model discloses a high definition interactive fusion type set top box, it includes PON module, DVB module, optical communication module, first interface module, network state indicating lamp, first memory, second interface module, power indicating lamp and second memory, PON module and DVB module pass through internal PHY communication circuit communication, integration in a equipment, optical communication module, first interface module, network state indicating lamp and first memory all are connected to PON module, and second interface module, power indicating lamp and second memory all are connected to DVB module, PON module adopts the chip of RTL9603C type and realizes, DVB module adopts the chip of MC2416 type and realizes, the high definition interactive fusion type set top box of the utility model, through with PON module and DVB module integration in a equipment, and together through internal PHY layer connection, has improved operating speed, has improved user experience and reduced user cost.

The invention discloses a high-resolution image calculation and display integrated method and system based on a photoelectric calculation hybrid architecture, and belongs to the technical field of image data processing, and the method comprises the steps: carrying out the combined modeling of the time domain gray scale response characteristics of a display panel and a space pixel structure, and constructing a display end prior template; an optical modulation mask is generated based on a template, physical modulation and coding sampling are carried out on an incident light field, a photoelectric mapping relation is utilized to establish a cross-domain correlation tensor as regularization constraint to reconstruct to-be-displayed image data adaptive to panel characteristics, and a display end prior template is combined to carry out consistency residual calculation to generate driving compensation correction. And finally synthesizing an optimized display driving sequence. A display end prior template is combined with optical coding to construct a cross-domain association tensor, and driving data is reconstructed by regularization constraint, so that compensation and optimization of space-time coupling characteristics of a display panel can be realized.

The present application relates to the technical field of target object trajectory determination, and provides a target object trajectory determination method, device, electronic equipment and computer readable storage medium.The method comprises the following steps: obtaining an optical pulse signal from an optical fiber; determining an optical pulse phase change and an optical pulse frequency change of the optical fiber caused by a target object according to the optical pulse signal; determining an action trajectory of the target object based on the optical pulse phase change and the optical pulse frequency change; and sending an alarm signal to a target device based on the action trajectory of the target object.The method can effectively solve the deficiency of traditional monitoring technology in the application of nuclear power plants, and significantly improve the reliability and efficiency of safety monitoring.

The invention relates to the technical field of photoelectric data transmission, in particular to a multi-path Cameralink digital image optical fiber transmission system for an aviation photoelectric pod. Comprising an image data sending unit, an optical fiber slip ring and an image data receiving unit which are sequentially connected, both the image data sending unit and the image data receiving unit take an FPGA as a core processor, and realize unidirectional transmission of optical signals through an optical fiber slip ring; the image data sending unit is used for receiving multiple paths of Cameralink digital image signals, converting the signals into optical signals after serial-to-parallel conversion and time-sharing coding, and sending the optical signals to the optical fiber slip ring; and the image data receiving unit is used for receiving the optical signal transmitted by the optical fiber slip ring, restoring the optical signal into a Cameralink digital image signal after photoelectric conversion and decoding reconstruction, and outputting the Cameralink digital image signal, so that the lossless transparent transmission of multiple paths of image signals is realized. The multi-path Cameralink image optical fiber lossless transmission device has the advantages that multi-path Cameralink image optical fiber lossless transmission is realized, the structure is simple, and the stability

A variable-resolution optical communication system includes a display operable to display an image and a variable-resolution camera disposed and operable to optically capture the image displayed on the variable-resolution display. A variable-resolution camera includes a camera substrate and camera pixels disposed on the camera substrate. The camera pixels have a variable spatial resolution, for example a variable camera pixel spacing, over the camera substrate and are controllable to capture light.

The invention relates to the technical field of computer communication, in particular to an airborne fiber channel multi-source video stream hybrid deterministic transmission method. According to the method, an acquisition mode, a cache mode, a cache depth and an enabling state of each path of video are independently configured based on an ICD file; each enabled video acquisition unit acquires video data in parallel according to configuration; performing integrity verification on the video data; storing the data passing the verification into a line or frame buffer area according to the cache mode to form an effective video stream; sending time slot sequences with non-overlapped time axes are dynamically arranged for all the effective video streams, and independent sending timers are set; and responding to the trigger of the sending timer, extracting video line data group frames from the corresponding buffer areas, and sending the video line data group frames through a single optical fiber interface MAC. According to the invention, the hybrid deterministic transmission of the multi-source heterogeneous video stream on the single optical fiber is realized, the wiring is simplified, the controllable transmission time sequence is ensured, and the delay is predictable.

The invention discloses a multi-modal large model storage monitoring method and system based on end-side cloud collaboration, and relates to the technical field of intelligent logistics and artificial intelligence. The system constructs a layered architecture comprising multi-mode perception access, a high throughput network, heterogeneous computing power and an intelligent interaction terminal. The method specifically comprises the following steps: collecting visual, audio and internet-of-things sensing data through equipment deployed on site; dynamic pruning based on space-time sparsity and audio cascade awakening are carried out on the edge side, and a physical engine is used for track early warning; at the cloud end, a multi-modal cue word is constructed through a vision-language feature alignment module, a large language model is input, and a logical anomaly judgment report is generated by adopting a thinking chain decoding strategy; and finally, self-adaptive closed-loop evolution of the model is realized by utilizing an artificial feedback and reinforcement learning algorithm. According to the method, the problems of insufficient semantic understanding, poor edge real-time performance and difficulty in model iteration in the prior art are effectively solved, and the intelligent level of storage safety management is improved.

The invention provides a dual-channel access system, and relates to the technical field of communication, and the system is characterized in that a first optical fiber inlet of a tail end machine room network is used for connecting a preset internet system, and a second optical fiber inlet of the tail end machine room network is used for connecting a television system; a first optical fiber outlet and a second optical fiber outlet of the tail end machine room network are respectively connected with a first optical fiber inlet and a second optical fiber inlet of the optical distribution network, and the first optical fiber outlet of the optical distribution network is connected with an optical fiber inlet of the main gateway through a home-entry optical fiber. At least one coaxial interface of the main gateway is connected with at least one slave gateway through at least one coaxial cable, and each slave gateway is used for being connected with a user terminal or a television set top box in a corresponding room. According to the invention, through the mode of fiber-to-the-home and coaxial room entry, redundant fibers do not need to be arranged, the deployment difficulty is reduced, and meanwhile, the signals of a television system and an internet system are improved. The networking deployment cost is reduced, and the quality of the networking scheme is improved.

The application discloses a spatial light modulator control method, a spatial light modulator and a control system, and relates to the technical field of spatial light modulator development and application. The method comprises the following steps: after obtaining addressing data and control data of a spatial light modulator, the addressing data and the control data are fused and encoded on resolution indication bits and bit depth indication bits in an addressing data format to obtain a video signal to be transmitted; then the video signal is transmitted to the spatial light modulator through a video signal transmission channel; the spatial light modulator parses the addressing data and the control data from the video signal; the corresponding light wave modulation function is completed according to the addressing data; and the corresponding control function is completed according to the control data. Thus, the interface requirement of an upper computer can be reduced, the purpose of transmitting signals by using the same interface and time sequence is achieved, the synchronous precision is high, the user operation is easy, and the method is convenient for practical application.

This application relates to the field of image transmission technology, specifically to a method for visually evaluating the fracturing effect of oil and gas wells. The method includes: real-time acquisition of video frames and cable length during the oil and gas well measurement process; extraction of analysis frames from the video frames; obtaining perforation connected regions based on the edge features, grayscale features, and shape features of each connected region in each analysis frame; determining whether to use the default merange parameter for encoding and transmission based on the number of perforation connected regions in each analysis frame; if not, optimizing the default merange parameter for each analysis frame based on the density, difference, and inter-frame displacement of perforations within each analysis frame, as well as the cable length, and then encoding and transmitting all video frames within the analysis interval of each analysis frame; and evaluating the fracturing effect based on the transmitted video frames. This application improves the accuracy of fracturing effect evaluation by adaptively adjusting the merange parameter.

The utility model relates to the technical field of video optical transceivers, and discloses a video optical transceiver with a limiting assembly, which comprises a box body and an optical transceiver body, the bottom of the inner wall of the box body is slidably connected with symmetrical U-shaped frames, the bottom of the box body is provided with a cavity, the inside of the cavity is slidably connected with symmetrical connecting blocks, and the limiting assembly is arranged on the U-shaped frames. A driving assembly used for enabling the two connecting blocks to move synchronously is arranged in the cavity, and the tops of the connecting blocks extend into the box body and are fixedly connected with the U-shaped frame. According to the video optical transmitter and receiver with the limiting assembly, after the optical transmitter and receiver body is placed in the box body, one U-shaped frame slides, the other U-shaped frame can synchronously move under the action of the driving assembly, after the two U-shaped frames clamp the optical transmitter and receiver body, the U-shaped frames are fixed through the limiting assembly, and then the optical transmitter and receiver body can be fixed in the box body. Therefore, the installation of the video optical transceiver is more convenient, and the stability of the optical transceiver is higher after the optical transceiver is installed in the box body.

The present application relates to the technical field of image processing, in particular to a kind of real-time optical tracking method and system of moving target based on passive guidance.The approximate coordinates of moving target are obtained by passive direction finding station;And according to the approximate coordinates, control laser illumination unit to light moving target body, utilize binocular camera unit to carry out image acquisition and visual analysis to moving target, to obtain the position change of moving target;Combining the position change of moving target, determine the trajectory pose of moving target.Using call camera unit, the whole tracking of moving target is carried out, and the flight state of moving target collected is transmitted to host computer in real time for display.The present application realizes real-time positioning of moving target by the fusion mode of passive direction finding station and binocular optical system, realizes real-time accurate positioning of moving target in the case of building, vegetation dense and low visibility.

This invention discloses a digital video receiving control system and method based on an airborne hybrid fiber optic link, relating to the field of digital video transmission and processing. The system includes multiple fiber optic channel MAC units, a receive scheduling and management unit, a line image framing unit, a receive buffer, a line image logical ID linked list, a receive buffer management unit, an image restoration unit, and a configuration and status register group. The receive scheduling and management unit receives video data frames from the available fiber optic channels; the line image framing unit reassembles the video line data and generates the first line arrival signal; the receive buffer management unit writes the data into the buffer and updates the linked list; the image restoration unit responds to the first line arrival signal and reads the data in the linked list order to restore the image. This invention solves the problem of reliable reception and image restoration of asynchronous video streams from multiple fiber optic channels, and has the advantages of clear structure, flexible configuration, and high reliability.

The application provides a protocol-based ARINC818 output video automatic testing method, which comprises the following steps: testing the received signal at a physical link layer; testing at a coding and decoding layer; testing a high-level service interface; the ARICN818 video output automatic testing method provided by the application can complete the automatic testing of the physical transmission characteristics, data frame format and video characteristics of the ARICN818 output video by analyzing the physical layer, coding and decoding, frame format and content of the video output, and realize the automatic testing of the output video.

The invention relates to the technical field of vehicle-mounted camera transmission, in particular to a vehicle-mounted camera. The vehicle-mounted camera comprises a shell and a circuit board assembly arranged in the shell, the circuit board assembly is provided with an MAC chip and a silicon optical assembly, the two opposite sides of the shell are connected with a camera module and a photoelectric composite cable respectively, the photoelectric composite cable comprises a cable and an optical fiber, the cable is connected with the circuit board assembly, and the optical fiber is connected with the shell. The optical fiber is connected with the silicon optical assembly, and the MAC chip is used for converting an MIPI protocol of a camera module into a PON protocol so as to realize optical network transmission through the silicon optical assembly. By adopting the mode, the communication transmission speed can be improved.

The invention provides a vehicle-mounted video system and a vehicle, and relates to the technical field of video systems, image data are collected through each camera module and forwarded to at least one of a driving domain module and a cabin domain module through a gateway module, and then the driving domain module sends the image data to the cabin domain module according to the image data of the driving domain. Generating first video data and forwarding the first video data to the display module of the driving domain through the gateway module, and generating second video data through the cabin domain module according to the image data of the cabin domain and forwarding the second video data to the display module of the cabin domain through the gateway module; at least one of the first video data and the second video data is displayed through each display module, and the gateway module is connected with the driving domain module, the cabin domain module, each camera module and each display module through optical fibers, so that compared with a transmission mode in the related technology, the bandwidth of optical fiber transmission is higher, and the transmission efficiency is improved. Therefore, the resolution of the video displayed by the display module is higher, and the user experience is improved.

This invention relates to the field of optical communication technology. To address the technical problems of slow convergence speed and susceptibility to local optima in existing gray wolf algorithms, a coherent free-space optical communication system based on an improved gray wolf algorithm is proposed. By introducing inertial weights and a nonlinear decay model to construct a velocity-guided position update equation, and combining it with an improved DLH strategy based on a dynamic elite reinforcement mechanism, the algorithm effectively balances its global exploration and local exploitation capabilities, solving the problem of traditional algorithms easily getting trapped in local optima when dealing with high-order Zernike aberrations. At the same time, a population size reduction NPSR strategy based on a nonlinear sigmoid function is designed to rapidly reduce the population size in the later stages of iteration through a nonlinear approach, significantly reducing the running time of the SLAO system.

The invention provides an airborne video monitoring system based on optical fiber Ethernet automatic position matching, and belongs to the technical field of airborne video monitoring networks. A photoelectric conversion module; a network switching unit; a video scheduling distribution unit; a video encoding and decoding unit; and the video encoding and decoding unit is used for reading a specified video clip in the data storage unit according to the instruction, decoding and playing back the specified video clip, and sending the specified video clip to the video scheduling and distributing unit for outputting and displaying. According to the system, the IP address can be automatically configured according to the installation position of the camera, and the IP address corresponds to the mapping of the installation physical port; the camera is assembled and disassembled by the system without maintenance, the camera realizes position identification according to the installation position, and characters at the corresponding position are superposed on a video picture through the video scheduling distribution unit.

An HDMI optical fiber cable with a quick-detachable module. The HDMI optical fiber cable comprises a housing (10), an optical fiber input connector (20) and a conversion module (30), wherein the conversion module (30) is detachably mounted in the housing (10) and is in plug-in fit with the optical fiber input connector (20); the conversion module (30) has an elastic limiting arm (31), a terminal receptacle (32) and an optical module (33); the optical fiber input connector (20) has a mating terminal (21) and an optical fiber input interface (22); the mating terminal (21) separably mates with the terminal receptacle (32), and the optical input interface (22) also separably mates with the optical module (33); a front end of the elastic limiting arm (31) separably abuts against the housing (10); and a button (11) is provided on the housing (10), and after the button (11) is pressed, the elastic limiting arm (31) is separated from the housing (10), and the conversion module (30) is unlocked from the housing (10). Thus, by means of the conversion module (30) mating with the optical fiber input connector (20) in a pluggable manner, and proving the button (11) between the housing (10) and the conversion module (30) so as to lock or unlock the conversion module (30), the conversion module (30) can be quickly detached and replaced. In this way, the conversion module (30) of the HDMI optical fiber cable can be replaced after a period of use, thereby prolonging the service life of the HDMI optical fiber cable.

This invention relates to the field of communication technology, specifically to an in-vehicle communication system. It includes an OLT optoelectronic module, an optoelectronic composite cable, and an OUT optoelectronic module. The OLT optoelectronic module includes a first optical circuit board, a control circuit board, and a first interface. The first optical circuit board has a first transmitting end and a first receiving end, and is electrically connected to the control circuit board and the first interface. The OUT optoelectronic module includes a second optical circuit board, a second interface, and an in-vehicle camera. The second optical circuit board has a second transmitting end and a second receiving end, and the second interface and the in-vehicle camera are both electrically connected to the second optical circuit board. The two ends of the optoelectronic composite cable are respectively connected to the first interface and the second interface. The signal transmission of this in-vehicle communication system adopts an "electric-optical-electric" conversion transmission method. Compared with pure electric signal transmission, optical signals as a transmission medium have the advantage of high speed, which can significantly improve the system response speed and image transmission stability.

The present application relates to the technical field of computer communication, in particular to a kind of airborne fibre channel multi-source video stream mixed deterministic transmission method.The method is based on ICD file to the independent configuration of the collection mode, cache mode, cache depth and enable state of each video;Enabled video acquisition unit is collected video data in parallel according to configuration;Integrity check is carried out to video data;According to cache mode, the data that passes check is stored in line or frame buffer area, and effective video stream is formed;For all effective video stream, the time slot sequence of non-overlapping transmission is dynamically arranged, and independent transmission timer is set;In response to transmission timer trigger, video line data group framing is extracted from corresponding buffer area, and is sent through single fiber interface MAC.The present application realizes the mixed deterministic transmission of multi-source heterogeneous video stream on single optical fiber, simplifies wiring, ensures that transmission timing is controllable and delay is predictable.

The application discloses a wireless audio and video information transmission device for a high tower crane, which is characterized by comprising an audio and video collection module, an audio and video coding module, a laser communication module, an audio and video decoding module and an audio and video display module, wherein the modules are sequentially connected, that is, the audio and video collection module is connected with the audio and video coding module through a data transmission interface, the audio and video coding module is connected with the laser communication module, the laser communication module is connected with the audio and video decoding module, and the audio and video decoding module is connected with the audio and video display module, so that wireless transmission of audio and video information between the high tower crane and the ground is realized, the tower crane driver can intuitively obtain the situation of the working site, accurate operation is facilitated, and the safety and efficiency of construction are improved.

The invention relates to the technical field of optical communication, and provides a coherent free space optical communication system based on an improved grey wolf algorithm in order to solve the technical problems that an existing grey wolf algorithm is low in convergence speed and prone to falling into local optimum. An improved DLH strategy based on a dynamic elite enhancement mechanism is combined, the global exploration and local development capability of the algorithm is effectively balanced, and the problem that a traditional algorithm is prone to falling into local optimum when processing high-order Zernike aberration is solved; meanwhile, a population scale reduction NPSR strategy based on a nonlinear S-shaped function is designed, the population scale is rapidly reduced in a nonlinear mode in the later stage of iteration, and the running time of the SLAO system is remarkably shortened.

The invention discloses an image sensor and an electronic rearview mirror, and relates to the field of image processing, the image sensor is deployed in an image acquisition device, the image acquisition device is connected with a controller, and the controller is connected with a display; the image sensor at least comprises a sensor kernel module used for converting a collected optical signal into a digital electric signal; the image signal processing module is used for carrying out signal optimization processing on the digital electric signal; the signal coding module is used for carrying out data coding on the optimized digital electric signal to obtain image data; and the data interface is used for transmitting the image data to the controller, the controller processes the image data and transmits an obtained target image to the display, and the display outputs the target image.

To enable continuous video reproduction on a reception side with a minimum delay in a case where baseband video data is transmitted via a network.A transmission / reception system includes a transmission device and a reception device connected via a network. By the transmission device, baseband video data is transmitted to the reception device via the network, and a transmission speed of the baseband video data is controlled on the basis of a transmission speed change request received from the reception device via the network. By the reception device, the baseband video data is received from the transmission device via the network, and the transmission speed change request is transmitted to the transmission device via the network on the basis of a buffer amount of the baseband video data.

To improve a method for acquiring location information.SOLUTION: A communication system (3970) includes a plurality of cameras (3971A, etc.) that capture images to generate images, a server (3972) that stores the images generated by the plurality of cameras (3971A, etc.), and a plurality of transmission devices (3971A, etc.) that correspond one to-one with the plurality of cameras (3973A, etc.), each of the plurality of transmission devices (3973A, etc.) transmitting light including, as a visible-light communication signal, communication-related information for accessing a storage location in the server in which the image generated by the camera corresponding to the transmission device is stored.SELECTED DRAWING: Figure 39A

The invention discloses an underground communication tracking method based on free space optical communication. The method is realized based on an underground emergency tracking system, and the system comprises optical fixed equipment and mobile equipment; the method comprises the steps that the mobile device emits a tracking light beam through the beacon light emitting assembly; the fixed device locks the mobile device and determines a light beam emission direction based on the tracking light beam in response to the received tracking light beam; the fixed device sends a posture adjustment instruction corresponding to the light beam emission direction to the tracking and pointing communication electric control box, controls the tracking and pointing communication electric control box to drive the two-dimensional optical rotary table to rotate, and sends a first light beam to the mobile device; the mobile device controls the camera to collect audio data and / or video data, and the optical processing board card generates light beam convergence information of the first light beam; emitting a second light beam through the light beam transceiving assembly; and the fixed device receives the second light beam, analyzes the second light beam based on the data processor, and feeds back light beam convergence information, audio data and / or video data obtained through analysis to the upper computer.