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83results about How to "Reduce lookup" patented technology

Packet forwarding method in TRILL (transparent interconnection of lots of links) network and routing bridge

The invention discloses a packet forwarding method in a TRILL (transparent interconnection of lots of links) network and a router bridge. Both an entrance RB (router bridge) and an exit RB distribute local unique labels for local ports, and an MAC (media access control) address of a local host and the labels distributed for the local ports are learnt into local MAC address table entries; an MAC address table entry corresponding to a target MAC address of a packet to be forwarded from the local host is searched by the entrance RB in a local MAC address table, TRILL encapsulation including the entrance RB, the entrance label, the exit RB and the exit label is performed for the packet to be forwarded according to search results, and the encapsulated TRILL packet is sent to the exit RB; TRILL decapsulation is performed by the exit RB for the TRILL packet, an inner layer source MAC address is learnt, the inner layer source MAC address, the entrance RB and the entrance label are learnt to the local MAC address table entries, and the decapsulated packet is forwarded according to the exit label. By adopting the method and the routing bridge, the packet forwarding based on the labels can be realized, the search of the MAC address table can be reduced, and the complexity of packet forwarding can also be reduced.
Owner:XINHUASAN INFORMATION TECH CO LTD

Intelligent suspension system and suspension distribution control method

An intelligent suspension system comprises a main transportation circulating passage and a plurality of branch passages forked from the main transportation circulating passage, and a track changing mechanism is arranged at a fork position of the main transportation circulating passage and every branch passage. Different radio frequency identification cards are allocated to suspensions which are fed from a feeding end of the main transportation circulating passage and are distributed to different branch passages before feeding. When every suspension runs to the fork position of the corresponding branch passage, a card reading device reads radio frequency identification information to judge whether the suspension enters the branch passage or not, and if the suspension is allowed to enter the branch passage, the track changing mechanism is communicated with the branch passage and the suspension enters the suspension passage; if the suspension is not allowed to enter the branch passage, the track changing mechanism is communicated with the main transportation circulating passage and the suspension continues moving on the main transportation circulating passage circularly. If a specific branch alarms, directional distribution of the suspensions can be adjusted through terminal control, and if all the branches alarm, the main transportation circulating passage stops running.
Owner:青岛酷特智能股份有限公司

Intelligent saving toilet paper paper-out method and system for public toilet

The present invention provides an intelligent saving toilet paper paper-out method and system for a public toilet. The method comprises the following steps: a paper-out platform is built in advance, wherein the paper-out platform includes a server, a communication network, a mobile client, a paper-out machine terminal and a detector, and the server includes a first determination module configured to determine whether the users are existing users or not; a second determination module is configured to determine whether the existing users can use paper for free or not; after the server receives the paper using request, the server determines whether the users are existing users according to the user paper-out information, and if the users are not existing users, the papers are directly taken out; and if the users are existing users, the server compares the time interval from paper using at the last time to this time with a presetting time value T, and it is controlled whether the papers are taken out or not and the paper-out state according to the comparison value. The server controls the paper delivery of each paper-out machine terminal so as to greatly improve the paper using standardization management, put an end to take more papers by people who are greedy for small gains and ensure that everybody can use the papers.
Owner:苏州托尔斯自动化有限公司

Key-Value storage system-oriented indexed searching method and system

The invention discloses a Key-Value storage system-oriented indexed searching method and system. The method comprises the steps of S1, acquiring a Key-Value data item, storing the Key-Value data item into block, and generating a prefix complete binary tree according to block nodes; S2, acquiring a key value, and determining a key value digit number k according to the height of the binary tree, wherein the key value is a binary number; S3, acquiring first k digits of the key value, traversing from the first digit of the first k digits of the key value, searching the first 1 in the first k digits of the key value, recording a number j of digits in front of the first 1; S4, judging whether j is smaller than k or not, if j is smaller than k, enabling an objective result i to be equal to 2j, and executing S5, and if j is not smaller than k, enabling the objective result i to be equal to 2k-1-1, and executing S6; S5, cyclically searching from a (j+2)th digit of the key value, and when 1 is searched, enabling i to be equal to 2*(i+1); otherwise, enabling i to be equal to 2*i+1; stopping searching to obtain the objective result i when j is equal to k, and executing S6; S6, through the i value, searching block[i] in the prefix complete binary tree, judging whether the block[i] is not-null or not, and if the block[i] is not-null, outputting a value of the objective result i ; if the block[i] is null, enabling k to be equal to k-1, and then executing S3 until k is equal to 0.
Owner:ANHUI UNIVERSITY

Shield tunnel surface image calibration method, splicing method and splicing system

The invention discloses a shield tunnel surface image calibration method, a splicing method and a splicing system, and belongs to the field of tunnel detection. The method is characterized in that itis guaranteed that the optical axis of each camera is perpendicular to the surface of a tunnel, and the field angle of each camera is at least equal to (alphs-sigma(n-1))/n; the calibration paper is pasted in an overlapped area of each view field range on the surface of the tunnel, so that each overlapped area comprises a plurality of candidate saddle points to be calibrated; each camera collectsa tunnel surface image at the same time; the candidate to-be-calibrated saddle points which are shot at the same time and have the best quality are found out as the to-be-calibrated saddle points of the adjacent cameras; and the coordinate information of each to-be-calibrated saddle point of each tunnel surface image is calcluated. According to the present invention, the saddle point of the view field overlapping area is selected as the calibration point, only one high-quality image needs to be shot, the operation is easy, and the method is suitable for the tunnel environment. The curved planeof the tunnel is unfolded into a plane through the mapping relation between the distorted image and the plane image, the splicing under the same coordinate system is achieved, the cost is lower, thetime is short, and the visual effect is better met.
Owner:HUAZHONG UNIV OF SCI & TECH

Data center network disaster recovery backup transmission method

The invention discloses a data center network disaster recovery backup transmission method. The method comprises the following steps: determining, by a data sending end, the priorities of data streamsaccording to transmission time limits and data volume sizes of the data streams, independently adjusting the congestion windows of the data streams according to the priorities and congestion degrees,and limiting the sending rates of the data streams with low priorities in the case of congestion; and setting a queue for storing an identifier and priority information of the data stream to which amessage belongs at a data exchange end, and traversing the message to determine the priority of the data stream to which the message belongs when the message is sent or received, and processing the message according to the priority. The technical method recorded in the invention provides an end-to-end data center network disaster recovery backup transmission mechanism, which can maintain relatively good performance when the network load is relatively large, and can achieve low latency, high throughput, high burst tolerance and easy deployment, so that the transmission of disaster recovery backup data among a large amount of data stored in a data center can be completed within a short time.
Owner:BEIJING JIAOTONG UNIV

Multiple video forwarding method based on port numbers and IP addresses

The invention discloses a multi-video forwarding method based on port numbers and IP addresses, and belongs to the video transmission field. The multi-video forwarding method based on port numbers and internet protocol (IP) addresses comprises a video server, a forwarding server and a terminal, wherein the video server sends multi-channel videos to the forwarding server which forwards corresponding videos to the terminal needing video transmitting; when the forwarding server forwards the corresponding videos to the terminal needing video transmitting, the forwarding server updates terminal information and the start and close of sub threads through a main thread, the transmission of videos is achieved through the sub threads, and each of the multi-channel videos corresponds to an independent sub thread, and each of the sub threads corresponds to a port number. According to the multi-video forwarding method based on port numbers and IP addresses, concurrent execution and no mutual interference among sub threads are guaranteed; further, the start and close of sub threads is achieved, not only simultaneous forwarding of multi-channel videos is guaranteed, but also the occupied bandwidth of reduced threads is prevented, and video transmission cost is reduced, so that the effect of video transmission is good.
Owner:CHONGQING UNIV OF POSTS & TELECOMM +1

Virtual article presentation method and device for live broadcast room, electronic equipment and storage medium

The embodiment of the invention provides a virtual article presentation method for a live broadcast room, and the method comprises the steps: determining a target virtual article corresponding to a presentation behavior event when the presentation behavior event of an audience is monitored to exist in the current live broadcast room; determining a giving frequency corresponding to the target virtual article; and when the presentation frequency reaches a preset threshold, displaying a presentation control of the target virtual article in a live broadcast room user interface of a target audience, and triggering a presentation behavior event of the target audience for the target virtual article in response to a triggering instruction for the presentation control. According to the method, thecomplexity degree of virtual article presentation operation is reduced, the enthusiasm of audiences for presenting virtual articles is improved, the gift presentation atmosphere of a live broadcast room is created, the conversion of the payment rate is improved, the frequency of anchor shouting and gift presentation is reduced, anchors focus on game scenes and show venue art performances, and thelive broadcast experience of the anchors is improved.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

Information machine room cable identification and line finding management method based on seven-color two-dimensional codes

The invention discloses an information machine room cable identification and line hunting management method based on seven-color two-dimensional codes. The method mainly comprises the steps that equipment of an information machine room is graded according to importance, the equipment of the same grade is identified by adopting equipment labels of the same color, and connecting cables between the equipment of the same grade are identified by adopting cable labels of the same color as the equipment labels; A two-dimensional code image containing equipment information or connection cable information is printed on the equipment label or the cable label; The operation and maintenance personnel uses a mobile terminal to scan the two-dimensional code image to obtain detailed information of corresponding equipment or connecting cables and specific physical paths of the connecting cables; In the line searching process, only the cable labels of the corresponding grades and colors are concerned,and the corresponding connecting cables can be quickly found. According to the management method, anyone can quickly identify the risk level, importance degree and other parameter information of the equipment in the machine room according to the color identifier, important equipment is preferentially maintained, and safe and stable operation of the information machine room is guaranteed.
Owner:广西电网有限责任公司防城港供电局
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