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53results about How to "Reduce the risk of congestion" patented technology

Message transmitting method and device in Internet of things

InactiveCN106850397AIncrease the timeout judgmentImprove certaintyData switching networksTime informationThe Internet
The invention relates to a message transmitting method and device in the Internet of things. The method comprises the steps of receiving a message instruction transmitted through an MQTT (Message Queuing Telemetry Transport) protocol, wherein the message instruction comprises message sending end information, message performing end information, a time stamp and overtime information; detecting whether the message instruction is overtime or not according to the time stamp and the overtime time information in the message instruction; if the message instruction is overtime, detecting whether the current terminal is a message performing end or not according to the message performing end information in the message instruction; if the message instruction is overtime and the current terminal is the message performing end, giving up performing the message instruction and sending overtime prompt information to a message sending end according to the message sending end information; and if the message instruction is overtime and the current terminal is not the message performing end, interrupting transmission of the message instruction and sending the overtime prompt information to the message sending end according to the message sending end information. The certainty of the performing condition of the message instruction transmitted through the MQTT is improved.
Owner:MIXLINKER NETWORKS INC

Scheduling method for file transmission, management platform, request platform and storage medium

ActiveCN108512761AAvoid the risk of congestionImprove accuracyData switching networksFile transmissionTime segment
The invention discloses a scheduling method for file transmission, comprising the following steps of: screening an associated transmission task for obtaining a transmission task to be executed from successfully evaluated transmission tasks, wherein the transmission time period of the associated transmission task and the transmission time period in the configuration information of the transmissiontask to be executed are at least partially overlapped; determining a time path association set by using a first path set obtained by splitting the transmission path of the associated transmission taskhop by hop and a second path set obtained by splitting the transmission path of the transmission task to be executed hop by hop; determining a maximum available bandwidth corresponding to the transmission task to be executed according to the time path association set; and transmitting the file transmission instruction to the requesting platform when determining, based on the determined maximum available bandwidth, that the transmission task to be executed is executed by the resource corresponding to the configuration information, so as to enable the request platform to perform the transmission task to be executed by using the corresponding resource. The invention also discloses a management platform, a request platform, and a computer readable storage medium.
Owner:MIGU CO LTD +1

Message transmitting method and device in Internet of Things

InactiveCN107181674AIncrease deadline judgmentImprove certaintyData switching networksTime informationTimestamp
The invention belongs to the field of Internet of Things technology and relates to a message transmitting method and device in Internet of Things, and the method comprises the steps: a message instruction is received, the message instruction comprises message transmitting terminal information, message executing terminal information, a timestamp and deadline information; whether the message instruction overtimes is detected according to the timestamp and the deadline information in the message instruction, and whether the current terminal is a message executing terminal is detected according to the message executing terminal information in the message instruction; if the message instruction overtimes, and the terminal is the message executing terminal, the message instruction is given up to be executed, and an overtime prompt message is transmitted to a message transmitting terminal according to the message transmitting terminal information; if the message instruction overtimes, and the terminal is not the message executing terminal, the message instruction is deleted, and an overtime prompt message is transmitted to a message transmitting terminal according to the message transmitting terminal information. According to the invention, the determinacy of message instruction executing condition transmitted by reserve protocol is improved.
Owner:SHENZHEN SHENGLU IOT COMM TECH CO LTD

API data transmission method and device based on data-in-data platform, equipment and medium

The invention relates to an API data transmission method and device based on a data-in-data platform, computer equipment and a storage medium. The method comprises the steps of obtaining a to-be-transmitted API data packet, and converting the to-be-transmitted API data packet into a plurality of data sub-packets; determining a transmission thread corresponding to each transmission path used for transmitting the data subpackages, counting the number of threads completing a preset workload in the transmission thread, and calculating a task processing degree value; obtaining the current queue length of the target transmission thread; according to the task processing degree value and the current queue length, determining a target distribution number of data subpackages of the target transmission thread; employing the target transmission thread for transmitting the data sub-packets of the target distribution number to a data medium station; and continuing to determine the target transmission thread until the data sub-packet transmission is finished. By adopting the method, the transmission tasks of the transmission threads can be relatively balanced, the congestion risk of the transmission threads can be reduced, the transmission threads can be prevented from being idle, and thus the transmission efficiency of the transmission threads is improved.
Owner:SHENZHEN COMTOP INFORMATION TECH

Public place face recognition entrance guard system and control method

The invention provides a public place face recognition entrance guard system and control method, and relates to the technical field of face recognition entrance guards. The public place face recognition entrance guard system comprises an entrance guard main control system, a face information base, a recognition waiting area, a recognition area entrance barrier gate, recognition area exit barrier gates, a face recognition camera and an advertising machine; the entrance guard main control system is used for controlling whether the recognition waiting area is started or not; and under the condition that the recognition waiting area is started, the camera is used for carrying out real-time face recognition on the face information of all floating persons in the recognition waiting area to obtain all the face information, and the recognition area exit barrier gates are used for being completely opened or completely closed based on the face information. By introducing the recognition waitingarea, the recognition waiting area can be started at the peak of people flow, and all people in the waiting area can be recognized by the camera at the same time, so that all the exit barrier gates are opened at the same time after all the people are successfully matched with the information base, and thus the passing efficiency of a face recognition entrance guard gate machine at the peak of people flow is improved.
Owner:小爱智能科技(苏州)有限公司

Goods sorting system and method

The invention provides a goods sorting system and method. The goods sorting system comprises a goods shelf, a four-way shuttle vehicle, a sky rail vehicle and a shunt vehicle, wherein a ground rail track and a sky rail track are laid in a roadway of the goods shelf, the ground rail track and the sky rail track extend in the length direction of the goods shelf, the four-way shuttle vehicle is slidably mounted on the ground rail track, a manipulator is mounted on the sky rail vehicle, the sky rail vehicle is mounted on the sky rail track in a sliding manner, a shunt vehicle track is arranged between the roadways, the shunt vehicle is mounted on the shunt vehicle track in a sliding manner, and the shunt vehicle is used for being clamped with the sky rail vehicle moving to the position so as to transfer the sky rail vehicle from one roadway to the other roadway along the shunt vehicle track. The goods sorting system and the goods sorting method are high in space utilization rate; the overall composite garage entering and exiting efficiency can be improved by increasing the number of vehicles, and expansion is convenient; the sky rail vehicle and the ground rail vehicle are arranged in an up-down split mode, the shunt vehicle slides along the shunt vehicle track to move the sky rail vehicle between roadways, dispatching can be conducted at any position of a goods shelf, and the risk of roadway congestion is reduced.
Owner:三一建筑机器人(西安)研究院有限公司

System and method of information distribution based on small base station

The invention discloses a system and a method of information distribution based on a small base station, belonging to the field of mobile communication. The system comprises a mobile communication core network 200, a mobile terminal 000, a small base station unit 100 and an information distribution unit 300, wherein the mobile terminal 000, the small base station unit 100, the mobile communication core network 200 and the information distribution unit 300 are connected in sequence; the small base station unit 100 comprises a small base station communication module 110, a small base station information push module 120 and a small base station storage module 130, which are connected in sequence; the information distribution unit 300 comprises an information distribution execution module 310, an information distribution strategy module 320 and an information distribution storage module 320, which are connected in sequence. According to the system and the method, a precise location area of a user is analyzed through small and medium mobile communication base station equipment, and the information distributed to the user is buffered, so that the precision of information distribution business is improved, and the risk of network congestion is reduced.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD

Congestion control method based on bandwidth prediction in civil aviation satellite communication

The invention belongs to the technical field of civil aviation mobile communication, and particularly relates to a bandwidth prediction-based congestion control method in civil aviation satellite communication, which introduces a bandwidth prediction algorithm to adjust a congestion window value in three stages of slow start, congestion avoidance and fast recovery of TCP (Transmission Control Protocol) congestion control, and comprises the following steps: initializing a system, entering the slow start stage of TCP congestion control, and entering the fast recovery stage of TCP congestion control; adjusting the increase amplitude of a congestion window by combining a dichotomy thought and a bandwidth prediction algorithm; when the congestion window value is equal to the slow start threshold value, entering a congestion avoidance stage of TCP congestion control, and adjusting the congestion window by adopting a congestion avoidance improvement mechanism; if the sending end receives three repeated ACKs or a network retransmission timer is overtime in a quick recovery stage, a congestion window and a slow start threshold are adjusted by adopting a first adjustment mechanism or a second adjustment mechanism; according to the invention, the residual bandwidth condition of the link is considered, the risk of congestion and packet loss of the link is reduced, and the throughput of the network is improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Throw-in type drill rod drift diameter gauge and application method thereof

The invention provides a throw-in type drill rod drift diameter gauge and an application method thereof, and belongs to the field of oil exploration. The device comprises a center shaft and a sealingsleeve sleeving the center shaft, wherein a sealing space is formed between the inner wall of the sealing sleeve and the outer wall of the center shaft; liquid is fully filled in the sealing space; and when a force along the axial direction of the center shaft is applied to the sealing sleeve, the outer diameter of one part on the sealing sleeve can be enlarged. According to the device, the problem that an existing drift diameter gauge cannot detect a mud cake with a certain thickness and other similar adherent objects adhered to the wall surface of a diameter enlargement section of an inner cavity of a drill rod can be solved, the inner cavity of the drill rod is ensured to be clean and smooth to the utmost extent, and the risk of entering a well and being blocked is reduced; the device adopts modular designing and assembling, the sizes of various parts are flexibly designed, the various parts are flexibly combined, so that the size requirements of drill rods with different specifications on site can be met to the utmost extent, and the aim of the drift diameter is achieved; the application method of the device is simple and high in reliability; and the device is easy to process and low in cost.
Owner:CHINA PETROLEUM & CHEM CORP +1

Multi-path route constructing method and system based on APDV (Ad Hoc On-demand Distance Vector)

The invention relates to a multi-path route constructing method and a system based on APDV (Ad Hoc On-demand Distance Vector). The method comprises the following steps: recording the times of a reply route response packets by a destination node or a middle node containing the newest route of the destination node; when the preset times are achieved, stopping the reply route response packets, and discarding the follow-up route request packets; judging whether the router response packets are received for the first time or not by a transmission node, if so, transferring the router reply packets, otherwise discarding the router reply packets; carrying out priority comparison on the paths constructed by the route reply packets through a source node, using the optimal path as a main path, using the suboptimal route as a backup path, and deleting other paths. In the invention, the number of the repeated route reply packets in network can be reduced, and the repeated transfer of the route reply packets can be reduced, and thus, the risk of network congestion can be decreased. The invention can adapt to the characteristic of frequent changes of Ad Hoc network topology structure, and is convenient to set up multi-path route quickly and effectively.
Owner:BEIJING JIAOTONG UNIV
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