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53results about How to "Smooth upgrade" patented technology

Digital multimedia information transmission platform

The invention discloses a digital multimedia information transmission platform, which comprises an acquisition system, a manufacturing system, a media resource system, a management system and a release system, wherein the acquisition system consists of control equipment, outside network material receiving server and an foreign signal, studio signal and magnet tape material acquisition and collection subsystem; the manufacturing system consists of a program editing system, a program examination system, a background packing and synthesizing system and a resource manager; the media resource system consists of a media resource cataloging and searching work station, a transcoding server, a database server, a storage management and migration server and a system management working station; the management system consists of a uniform user identification system and a network management system; the release system serving as an external interface module of a multimedia center encrypts finished products in multiple formats and executes related release according to outside service demands; and the platform is an integrated production line of digital media contents and also a digital media resource comprehensive service system platform and can realize overall media resource sharing.
Owner:BEIJING INFV MEDIA TECH

Dual-channel GEPON OLT CSFP (Gigabitcapable Passive Optical Network Optical Line Terminal Compact Small Form Factor Pluggable) optical module

ActiveCN102625199AReduce system upgrade costs and equipment investment costsSmooth transitionMultiplex system selection arrangementsFibre transmissionErbium lasersHemt circuits
The invention discloses an EPON OLT (Ethernet Passive Optical Network Optical Line Terminal) optical module, in particular to a dual-channel GEPON OLT CSFP (Gigabitcapable Passive Optical Network Optical Line Terminal Compact Small Form Factor Pluggable) optical module, which comprises a power supply soft starting circuit, a microcontroller, an I channel laser drive circuit, an I channel amplitude limit amplification circuit, an I channel avalanche photodiode boosted circuit, an I channel RSSI (Received Signal Strength Indicator) image current source and a sampling maintaining circuit, two I channel optical receiving and sending assemblies, a 20-pin CSFP gold finger connector and an I channel LC interface. Due to the I channel optical receiving and sending assemblies, the optical module can work in a one-path and one-channel standard SFPEPONOLT mode which is compatible with the traditional EPON system, and can also work in a dual-channel CSFPEPONOLT mode with doubled port density and data throughput, thus a system is favorably maintained in smooth transition and upgrading, and system upgrading cost and equipment input cost of an operator are effectively reduced.
Owner:SOURCE PHOTONICS CHENGDU

Mixed passive optical network system and transmission method thereof

The invention discloses a mixed passive optical network system and a transmission method thereof in the technical field of fiber optical communication. The mixed passive optical network system comprises an optical circuit terminal, an optical code division multiplexing coder/decoder, an optical multiplexer/de-multiplexer, feeder line optical fiber, a remote node and optical network units, wherein the output port of the optical circuit terminal is connected with the corresponding optical code division multiplexing coder/decoder, and the output of the optical code division multiplexing coder/decoder and the output of another optical code division multiplexing coder/decoder together enter the feeder line optical fiber through the optical multiplexer/de-multiplexer for transmission; after being transmitted to another optical multiplexer/de-multiplexer, optical signals are transmitted into the input port of other optical multiplexer/de-multiplexer; and after coding/decoding, the optical signals enter the remote node to be transmitted to each corresponding optical network unit. In the invention, the optical circuit terminal and the optical network unit structure of the transitional passive optical network does not need changing, the optical code division multiplexing coder/decoder has transparent signal format for the transmitted signals, and transparent capacity expansion and smooth updating of the system can be realized.
Owner:SHANGHAI JIAO TONG UNIV +1

High-speed signal frequency equalization and chirp management method based on single optical filter

The invention discloses a high-speed signal frequency equalization and chirp management method based on a single optical filter. Specifically, the method comprises the steps of conducting the optical modulation on a high-speed signal by a signal transmission device to obtain a modulated optical signal; filtering the optical signal by a single optical filter, wherein the stop band of the optical filter is corresponding to the wavelength part of the spectrum of the high-speed signal that is close to a carrier; and transmitting the filtered optical signal to a signal receiving device. According to the technical scheme of the invention, based on the filtering effect of the single optical filter, the frequency equalization of the optical signal is realized, while the requirement on the bandwidths of transmitting and receiving devices is lowered. The spectrum shaping effect of the single optical filter also solves the chirp problem during the direct signal-modulation process. In this way, a direct modulation laser still enables the long-distance optical fiber transmission during the modulation process of the high-speed signal. The system cost is effectively reduced. Moreover, the method enables the direct signal-modulation of the high-speed signal at a speed of 25 Gb / s on the basis of the conventional 10 Gb / s, and realizes the smoothly upgrading process. Therefore, the method is better in backward compatibility.
Owner:FENGHUO COMM SCI & TECH CO LTD

Indoor intelligent disinfection robot

The invention provides an indoor intelligent disinfection robot which comprises a shell, a moving device is arranged at the bottom of the shell, a microprocessor and a plurality of water tanks are arranged in the shell, the moving device is connected with the microprocessor, a plurality of spray heads are arranged on the periphery of the shell and communicated with the water tanks through pipelines respectively, and electric control valves are arranged at the joints of the pipelines and the water tanks. The electric control valve is connected with a microprocessor, a sensing device is arrangedon the shell and connected with the microprocessor, and the microprocessor is connected with a command end. An operation task instruction is sent to the microprocessor through the command end, the microprocessor drives the sensing device to sense the surrounding environment, the sensing device sends sensing information to the microprocessor, and the microprocessor drives the spray head to spray disinfectant while driving the moving device to move. The working load of workers is reduced, the efficiency of the workers is greatly improved, the workers are prevented from being infected, the safety coefficient is high, and meanwhile the indoor intelligent disinfection robot is simple in structure, convenient to operate, low in production cost and suitable for application and popularization.
Owner:ZHEJIANG CANCER HOSPITAL

Cross-time-zone conference system time processing method, device and system and computer equipment

The invention relates to a cross-time-zone conference system time processing method, device and system, computer equipment and a storage medium. A conference server side obtains a time zone of a placewhere the conference server side is located; the time zone is used as a conference server time zone; wherein the time on the time zone is the protocol layer time; and when a conference interaction request of a conference initiator is received, the conference server time zone is sent to the conference initiator, and the conference initiator can convert the presentation layer time of the conferenceinitiator into protocol layer time through conversion according to the conference server time zone, and interacts with the conference server based on the protocol layer time. Through the above method, under the condition that the server end of the internationalized conference system is located in China, the old version conference end in China can be accessed to the internationalized conference system without time zone conversion, so that the internationalized conference system can be compatible with the new version conference end and the old version conference end, and smooth upgrading of theconference system from the domestic version to the international version is realized.
Owner:ZHEJIANG HUACHUANG VISION TECH CO LTD
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