1614 results about "Loss rate" patented technology

Streaming media network parameters are measured using an electronic system and displayed directly to a user or transmitted via an electronic interface such as an existing system network conduit, either in or out-of-band. A scalable hardware and/or software compute engine filters and reduces network parameters to simplify tracking the instantaneous and long term streaming media performance of the network. Hence, the entire set of active media streams is continuously monitored concurrently, thereby providing the ability to detect impairments as well as predict impending impairments. In one example, an existing packetized network conduit containing streaming media is tapped to concurrently and objectively analyze the streaming media streams, producing statistics (such as delay factor and media loss rate) and alarm-type events according to predetermined rules. Tapping the existing packetized network in multiple points provides comparison points and assists in pinpointing the source(s) of the impairment(s).

The invention discloses a transmission and distribution network integration comprehensive line loss management analysis system and a processing flow thereof. The processing flow comprises the following steps of: obtaining the required network topology, line parameters, real-time data and history data from an EMS (energy management system), a power distribution GIS (geographic information system), a TMR (tele-meter reading) system and an electricity consumption information acquiring system through a processing interface, finishing integrating of the network topology, the line parameters, the real-time data and the history data based on unified object code and management service through model splitting software; and storing the analysis result into a database through digital monitoring and alarm software, power supply path analysis software, transmission and distribution network integration line loss counting and analysis software, and transmitting the result to the Web server to produce report forms. The system and processing flow disclosed by the invention provide suggestions for performing omnibearing and multi-angle monitoring and analysis on the full network loss, and also provide suggestions for a power grid to carry out the work of operation way optimization, technical reconstruction and the like with reduced grid loss rate.

Embodiments of the invention provide a system and method for transferring data on a data network using multiple paths. In one embodiment, data is transferred across a default path of a network. Next, a data loss rate is determined on the default path. When the data loss rate on the default path exceeds a first threshold value, a data loss rate is determined on a first alternate path. Provided the data loss rate on the first alternate path is less than a second threshold value, a first portion of the data is transferred to the first alternate path. Moreover, additional portions of data are transferred to the first alternate path until the data loss rate on the first alternate path meets or exceeds the second threshold value.

The invention provides a convenient and expandable method for transmitting one or more loss rate statistics determined in a distributed manner from a multicast distribution tree to a source computer. First, the loss rate statistics are collected in a distributed manner from target receiver stations, and from routers in the multicast distribution tree. Second, there is a distributed calculation of statistics on loss rate by routers in the multicast distribution tree. Third, there is transportation of the loss rate statistics back to the source computer in reverse along the multicast distribution tree. For example, congestion information is collected by routers, and the congestion information is sent upstream to the multicast source station in fields of NAK messages. A router may receive a NAK packet in transit from an intended destination station to a source station, the NAK packet indicating loss of a data packet. The router writes a loss rate statistic determined by the router into a “loss rate field” of a message to be sent upstream along the reverse of the distribution tree. The router determines the loss rate statistic to be written into the loss rate field of the message, in response to: analyzing the loss rate statistics on each of its links; the loss rate reported by the incoming NAK packet; and, the elapsed time from the time stamp showing when the various loss rate statistics were determined.

Streaming media network parameters are measured using an electronic system and displayed directly to a user or transmitted via an electronic interface such as an existing system network conduit (i.e. Ethernet, USB, or other packet-based architectures), either in or out-of-band. A scalable hardware and/or software compute engine filters and reduces network parameters to simplify tracking the instantaneous and long term streaming media performance of the network. Hence, the entire set of active media streams is continuously monitored concurrently, thereby providing the ability to detect impairments as well as predict impending impairments. The prediction of impairments gives rise to the ability to protect the end-user of the streaming media from experiencing any impairments. In one example, an existing packetized network conduit containing streaming media is tapped to concurrently and objectively analyze the streaming media streams, producing statistics (such as delay factor and media loss rate) and alarm-type events according to predetermined rules. Tapping the existing packetized network in multiple points provides comparison points and assists in pinpointing the source(s) of the impairment(s).

Via real time online bandwidth measurement, this method confirms the threshold value ssthresh. When the congestion window (CW) is less than a half of the threshold, the rule of exponent gain is followed. Otherwise CW gains each time a value of a half of difference of the threshold and CW (ssthresh-cwnd) to approach gradually the threshold. Until the difference is less than the regulation factor phi (ssthresh/2>= phi >=2). Then CW is set as the threshold value to enter the stage of avoiding congestion. This invention can reduce the happening of loss of several texts in a window at the slowly start stage, reduce the package loss rate and raise the net transferring ability.

A medical apparatus comprises a control system allowing storage of a number of shaping profiles. Each shaping profile is stored as a plurality of pairs, including a shaping profile reference value and a time interval value. The reference value is represented as fraction, for instance a percentage, of the total weight loss the apparatus should achieve at the end of a treatment time. Each time interval value is represented either as fraction of the total treatment time or as a prefixed actual time interval. The control system calculates the actual weight loss rate versus time profile based on the desired total weight loss, on the desired total treatment time as well as on selected desired shaping profile.

A technique for managing a queue so as to distribute losses among different service classes is disclosed. In one embodiment, the technique is realized by classifying an incoming packet into one of a plurality of classes. Each class has an associated weighting factor. The system continuously monitors a queue size and determines an overall packet drop probability based on the actual queue size and a target queue size and calculates a target class drop probability based on the overall packet drop probability and the weighting factor. Finally, the system makes a comparison based on the target class drop probability and a selected value and decides whether to drop the incoming packet based on a result of the comparison. If losses are unavoidable in the system, the technique ensures that the losses will be distributed among the different service classes in inverse proportion to the service price of each class.

A method for identifying crop leaf diseases based on an improved convolution neural network model AlexNet is disclosed. Firstly, the expanded and balanced data set is divided into a training set and atest set according to the ratio of 4: 1, and the picture data set is normalized, averaged and so on. Then the iterative input samples are trained to set and optimize the relevant parameters of the network. Finally, the trained network is tested using the test set. It is found that the average classification accuracy of the improved model is 99.3% and the loss rate is only 2%. On this basis, the invention also conducts a comparative experiment based on the gray image and the segmented image training network to explore the influence of the background and the color on the crop disease identification system. The analysis result shows that the disease identification method of the invention has high accuracy rate and low loss rate for disease identification classification of crops, and featuressuch as color and background of the fused image can improve the identification effect.

The invention relates to a preparation method and use of a carbon molecular sieve. The preparation method comprises the following steps: preparing a conventional carbon molecular sieve; and expanding the pores in the conventional carbon molecular sieve by using a secondary activation technique and modifying the conventional carbon molecular sieve by adjusting the pores. The new carbon molecular sieve is prepared by using coal, coconut shell or phenolic resin, and the like as raw materials, by the conventional production steps of crushing, forming, carbonizing, steam activating, hydrocarbon settling and shrinking and the like and by secondary activation with KOH or CO2 as an activator. The activation temperature is between 550 and 850 DEG C; and the ignition loss rate of the product is kept be between 0.1 and 30 percent. In aspect of use, the carbon molecular sieve can be used for absorbing nitrogen molecules and can also be used for absorbing and separating methane and nitrogen in seam gas under a variable pressure while achieving an adsorption dynamic separation effect and allowing high-concentration methane gas to be collected at the exit of an adsorption tower directly; and thus, the methane in the seam gas can be used efficiently.

A computer-implemented method and system for detecting possible occurrences of fraud in insurance claim data is disclosed. Historical claims data is obtained over a period of time for an insurance company. The fraud frequency rate and percentage loss rate for the insurance company are calculated. The fraud frequency rate and percentage loss rate for the insurance company are compared to insurance industry benchmarks for the fraud frequency rate and the percentage loss rate. Based on the comparison to the industry benchmarks, the computer system determines whether to perform predictive modeling analysis if the insurance company is within a first range of the benchmarks, to perform statistical analysis on the claim data if the insurance company is below the first range of the benchmarks or perform forensic analysis if the insurance company is above the first range of the benchmarks. Statistical analysis, predictive modeling or forensic analysis are then performed based on the benchmarks to determine possible occurrences of fraud within the insurance claim data.

The invention provides a code rate control method for video coding, wherein, control packages are sent at fixed period by a sender through a real-time transmission control feedback link; when feedback control packages are received, code rate is obtained according to package loss rate in the feedback control packages and video data is sent through the real-time transmission link according to the obtained code rate. The code rate control method for video coding and a transmitting device control output code rate by consideration of factors of package loss rate and encoded data can be suitable for transmission of current network conditions better, thereby better video display effect is reached.

A reception apparatus and method is disclosed wherein recovery of a lost packet can be performed simply and rapidly in response to the variation of the loss rate. A packet analysis section detects loss of a packet, and a retransmission processing section registers packet information including a sequence number for identification of a packet having been lost into a NACK list. When loss of a packet is detected by the packet analysis section, a NACK production section produces a NACK packet for requesting for retransmission of the non-arriving packet whose packet information is registered in the NACK list. A network inputting/outputting section transmits the NACK packet to a transmission apparatus. The invention can be applied to a reception apparatus which receives, for example, streaming data.

In some aspects, the disclosure is directed to methods and systems for intelligent aggregation and management of a plurality of network interfaces or connections. An intelligent connection manager may monitor connection and application communication parameters, and can control dynamic distribution, aggregation, or steering of traffic via different connections or pluralities of connections depending on bandwidth, congestion, or other factors. Connection management may be performed without hardware modification, and may handle connections with highly diverse parameters, such as different bandwidth or round trip latencies, different loss rates, different costs or power consumptions, or other factors. Management policies may be applied responsive to per-application and per-connection parameters to control distribution and/or aggregation of application requests and responses via a plurality of network connections.

The invention relates to a non-pillar deep-hole backing-type mining method. The method is suitable for that: the digging height is between 10 and 50 m; the length of a stope is between 40 and 80 m; the width of the stope is between 7 and 9 m; the dip angle of an ore body is between 68 and 90 degrees; the height of a bottom ore removal chamber is between 2.5 and 3.5 m; the height of an upper part rock drilling chamber is between 3.4 and 3.8 m; meanwhile, an explosive charge structure, an explosion initiating sequence, stope side lacing and top plate control are determined according to the conditions of the stope, and a remote-control scraper and a remote-control crushing trolley are jointly used to treat large ore materials for ore removal. The mining method has the advantages of small mining-cutting engineering quantity, simple mining-cutting process, high rock drilling efficiency, good blasting effect, safe and efficient ore removal process, can effectively improve the wide-spacing stoping safety for underground metal mines nationwide, can upgrade the mining technical level for the underground metal mines in China, can promote the development of nationwide underground metal mine mining technology, and can reduce the dilution rate and loss rate of nationwide underground metal mine spacing stoping stopes, so as to promote the maximal recycling of metal resources.

The invention relates to a method for seamless switch of mobile flow media transmission in the wireless mobile network, which uses multiple-path adaptive transmission speed regulation to realize the seamless switch of transmission layer, as dynamically regulating the layered multiple description video code strategy of flow media, according to the property of each path of multiple-path wireless access parallel transmission, to distribute the multiply-path transmission video code flow, and utilize the available band width of receiver most, to realize the stable transmission and smooth switch of transmission layer of mobile flow media. The invention can improve the band width, the transmission reliability, and reduce the network switch delay and the loss rate, to avoid the vibration which will affect the video quality of flow media. The invention can fully utilize present wireless network resource, with simple operation.

The packet loss in a wired section is reported to a receiving terminal (61) using a loss notification packet from a gateway (62) located at the boundary between a wired section and a wireless section, and thus the causes for packet loss are separated. Also, using this loss notification packet, the packet loss rate in the wired section and the wireless section are separately calculated and the transmission rate and robustness of the data packets are determined with a sending terminal (60) in accordance with the respective loss rate of the sections.

The invention discloses a reproducible wet flue gas desulfurization technique, which solves the problems of the prior art of high operation cost and high loss rate when absorbent is in use. The invention is characterized in that after going through a washing tower, flue gas containing gas SO< X > is then connected with the absorbent in a reverse flow in an absorption tower; the purified flue gas is discharged into the atmosphere; a portion of pregnant solution absorbent directly returns to the absorption tower for circular application, wherein SO2 of the flue gas is absorbed by the pregnant solution; a portion of air stripping is used circularly after a regeneration. The invention has the advantages that the energy consumption and operation cost of the technique are low, and loss of the absorbent is small.

The present invention is a mechanical oscillator metal loss sensor for use in a corrosive or erosive environment. The elements include a means for mechanical excitation, and a mechanical oscillator with two regions that corrode differently, where the regions are determined to affect specific influences on the resonance parameters, wherein said mechanical oscillator has a resonant frequency, f, and a quality factor, Q. In a preferred embodiment, the mechanical oscillator has the shape of a tuning fork.

A temporary plugging agent for well drilling having a plugging function for a period of not greater than 40 days in a high-temperature environment having a temperature range between 93 and 204° C., and preferably, the above temporary plugging agent for well drilling (optionally formed from two or more types of plugging agents for well drilling) wherein a contained synthetic resin has a ratio of mass loss rate in 80° C. deionized water relative to the mass loss rate of polyglycolic acid of not less than 0.001 and less than 1, and/or has a compressive strength after a period of not greater than 40 days has elapsed at a temperature range between 93° C. and 204° C. of not less than 20% lower than the compressive strength before the period began; a well-treatment fluid comprising the temporary plugging agent for well drilling; and a method for well drilling in which a temporary plugging treatment is performed using the temporary plugging agent for well drilling.

A method for controlling a real-time media stream between a sender and a receiver. The method includes streaming, from the sender, media packets over a network at a bit-rate, determining at the sender a loss-rate for the streamed media packets not received at the receiver. The sender optionally generates duplicate packets for a selected number of media packets and streams the duplicate packets over the network when the loss-rate is above a first loss-rate threshold, or varies the bit-rate of streaming the media packets over the network when the loss-rate is above a second loss-rate threshold.