38results about How to "Protect Existing Investments" patented technology

The invention discloses an Ub interface information interactive method in the general guide frame, which is characterized by the following: realizing B-TID safe protection on Ub interface to support front and back compatible publisher; establishing safe coalition between UE and BSF through safe ability negotiation; transmitting B-TID information through safe coalition in the defined parameter or head realm of original AKA negotiating information.

This invention discloses one warn management method, system and its system in warning technique field, which combines the current customer end or servo mode alarm system with current communication system to make the manager adopt sound popular communication types to receive warn system distribution information; on the other side, the management human processes warn management through current communication system through telephone, short message and electronic emails.

The present invention provides an optical cable fault analysis method and system. The method includes the following steps: acquiring equipment configuration information, alarm information and performance information in real time; acquiring the corresponding relationship between equipment and pipelines; judging whether the alarm information of the alarm equipment is related to optical path alarms information; if so, according to the corresponding relationship between the equipment and the pipeline, the optical cable fault analysis rule based on the probability theory operation algorithm is used to analyze and locate the optical cable fault; the process specifically includes: analyzing the optical path interruption in real time according to the optical path alarm related information , and then analyze the interruption of the optical cable segment according to the interrupted optical path obtained through analysis. The optical cable fault analysis method and system of the present invention realize fast and accurate positioning of optical cable faults, and can effectively save the hardware investment cost of using the OTDR method for optical cable fault analysis.

The invention discloses a multi-trajectory-based Internet of Things application analysis system and a method thereof, and relates to WIFI collection and portrait identity collection technologies. This system is: MAC address collection module (100), MAC address filtering module (101) and data preprocessing module (300) interact in sequence; portrait identity collection module (200), portrait comparison and collision module (201) and data preprocessing The modules (300) interact in sequence; the data preprocessing module (300); the data analysis center module (400) and the data association center module (500) interact in sequence. The present invention has the following advantages and positive effects: 1. Advanced nature, can realize the correlation between MAC address and portrait data; 2. Data has reliability, often long-term data precipitation and collision of result set; Can effectively protect the existing investment.

The invention discloses a mapping method of an optical channel data unit ODUk, which comprises the following steps: inputting TFI-5 data of a time-division multiplexing structure interface, and positioning the boundary position of rate adjustment bytes which need to be deleted; deleting the rate adjustment bytes in the TFI-5 data according to the positioned boundary position; and converting the clock signal frequency of data which does not contain the rate adjustment bytes onto a clock domain located by ODUk data and converting the width of the data to the width of the ODUk data. Correspondingly, the invention further discloses an ODUk mapping device which comprises a data input unit, a frame positioning unit, a first-in first-out (FIFO) unit and a data assembly unit. Therefore, the mapping method and the device can realize the mapping of the TFI-5 data to the ODUk data and further lead the ODUk data on different single boards to be exchanged.

The invention relates to the industrial wireless network technology, in particular to a factory automation wireless network time synchronizing method based on time division multiple address (TDMA). The factory automation wireless network time synchronizing method is based on the institute of electrical and electronic engineers (IEEE) 802.11 standard and the TDMA mechanism, by adopting a hardware timestamp printing method and calculating the timestamp values of a receiving side and a dispatching side, time deviation caused by processing delay of a protocol stack, delay from a physical layer interface to a wireless media interface (antenna) and delay of information transmission in the air can be eliminated, and accurate time synchronization of a factory automation wireless network can be achieved. On the basis that no additional expenses can be caused, the factory automation wireless network time synchronizing method remarkably improves the time synchronization accuracy of the factory automatic wireless network based on the IEEE 802.11 single-hop network, meets severe requirements on transmission speed, reliability, instantaneity and network scale of the factory automatic network and achieves the aims of being high in synchronizing accuracy, high in efficiency, low in expense, easy to achieve and the like.

The invention discloses a TWDM-PON (Time Wavelength Division Multiplexing-Passive Optical Network) ONU (Optical Network Unit) implementation device and method based on a COTF (Cyclical Optical Tunable Filter), and relates to the field of PON access. The ONU implementation device comprises an optical coupler, a circulator, a gain medium, a BPF (Band Pass Filter) 1, an isolator, a WDM (Wavelength Division Multiplexing), a COTF, a COTF control circuit, a BPF 2, a receiver, a signal modulating circuit and a burst control circuit; the COTF is connected with the COTF control circuit; the optical coupler, the COTF, the WDM, the BPF2 and the receiver are connected in sequence to form a downlink chain jointly; the optical coupler, the circulator, the BPF1, the isolator, the WDM, and the COTF form a closed loop; the circulator is connected with the gain medium; the gain medium is further connected with the signal modulating circuit and the burst control circuit respectively to form an uplink chain jointly. By adopting the the device and the method provided by the invention, the selectable wavelength of the ONU receiving end and the changeable wavelength of the sending end can be realized; the requirement of the TWDM-PON system to the ONU is satisfied; the existing investment of an operator is protected, and the construction cost of the network is saved.

The embodiment of the invention provides service transport system, equipment and method. The service transport system comprises the service transport equipment and a packet switching core, wherein the service transport equipment is used for receiving an SDH (Synchronous Digital Hierarchy) line signal from access layer equipment of a TDM (Time Division Multiplexing) switching network, converting the SDH line signal into TDM service, separating the TDM service into EOS (End of Signaling) service and non-EOS service, then converting the EOS service into packet service corresponding to the packet switching core and sending the packet service to the packet switching core; and the packet switching core is used for receiving the packet service and sending the packet service to convergence layer equipment of a packet switching network. The embodiment of the invention realizes the communication of the pocket service between the packet switching network and the TDM switching network without modifying the access layer equipment, thereby saving the cost.

The invention relates to the field of wireless communication, and discloses a method and a device for collocating and selecting a transmission frequency band. In the method and the device, a total system bandwidth is firstly marked off a main transmission frequency band as a transmission bandwidth keeping compatible with the prior system, other frequency bands positioned in the total system bandwidth beyond the main transmission frequency band have no fixed bandwidth division, but other transmission frequency bands beyond the main transmission frequency band are gradually distributed as auxiliary transmission frequency bands according to the running condition of the system and the requirement. The variable auxiliary transmission frequency bands enable the system to adapt to the requirement of service change more flexibly.