30results about How to "Meet the requirements of the transmission" patented technology

The invention relates to an information interaction method for an edge computing node, and the method comprises the steps that the edge computing node manages and transmits request information to a configured edge computing node, and the request information comprises address information, current state information and safety algorithm information; when the information interaction method of the edgecomputing node is used, the rapidity of data interaction between the node and the management node is realized, the data interaction speed is improved, the requirement of 5G data transmission is met,and the use effect is good.

The invention discloses an air flotation transportation device, which comprises a flat plate, on which several symmetrically distributed grooves are arranged, each groove is provided with longitudinal air inlet holes and air outlet holes in pairs, and the air inlet The hole and the air outlet are respectively connected with the compressed air inlet pipe and the compressed air exhaust pipe, and the compressed air inlet pipe and the compressed air exhaust pipe communicate with the positive pressure and negative pressure of the air source through the electromagnetic reversing valve. In the present invention, since the air is in a horizontal flow state in the groove, the viscous force of the air flow can be utilized to the greatest extent to drive the movement of the workpiece to obtain a larger motion acceleration, which solves the problem that the existing air flotation transportation device has a small driving ability and is easy to operate. The problem of disturbance caused by the workpiece can be avoided, and it can also reduce electrostatic pollution and stress concentration on the surface of the workpiece.

The invention discloses an intelligent positioning system and an information coding method, the positioning method comprises an intelligent terminal, a cloud server and an information device, the information device comprises an NFC chip and a shell, the NFC chip is embedded in the shell, the NFC chip of the information device saves the identity recognition information of a possessor in a solidified way through a transfer memory coding method, the intelligent terminal supports an NFC induction function, the intelligent terminal is communicated with the information device in a wireless way through a near field, the intelligent terminal is an induction device, the information device is a passive device, a data two-way transmission is performed between the intelligent terminal and the cloud server through a 4G wireless network. According to the invention, the information device has no need to further add a power supply for supplying electricity, so that the inconvenience caused by charging or changing battery is avoided; the intelligent terminal has no need to install any APP, and the intelligent can realize tracking and positioning by inducting the NFC chip.

The invention discloses an area protection partitioning algorithm giving consideration to communication constraint, and the algorithm faces the technical requirements of the area protection quick movement and reliability, gives consideration to the maximum jump number factors of substations and a main station, combines with the balance of the partitioned areas, and proposes an area protection mainstation selection model of a permutation and combination prioritizing method based on a Floyd shortest path algorithm. Furthermore, a substation dividing model is built according to the multifactor indexes affecting the communication time delay of area protection. In a dividing process of the substations, the algorithm gives consideration to the impact from an area protection communication network topological relation and length and bandwidth through combining with the technology of the graph theory, and achieves the reasonable distribution of the substations. N-1 channel faults in a rear preset region are caused for the partitioned area, and the impact from communication time delay in the communication tortuous process of the substations is analyzed, thereby achieving the further correction and supplement of the partitioning strategy. The algorithm effectively irons out the defects of a conventional method which needs a large amount of manual judgment operations and determination operations, achieves the partitioning area balance, and is smaller in communication time delay in a region.

The invention discloses a video transmission code rate self-adaption method and a video transmission code rate self-adaption device based on LTE (Long Term Evolution), and relates to the technical field of wireless video monitoring. The method comprises the steps of S1, acquiring the current bandwidth and current activated user information in a target cell; S2, determining the total number of video monitoring paths according to the current activated user information; and S3, calculating the optimal video transmission code rate according to the current bandwidth and the total number of video monitoring paths, and adjusting the video transmission code rate of each video monitoring device in the target cell according to the optimal video transmission code rate. According to the invention, the optimal video transmission rate is calculated so as to carry out adjustment on the video transmission code rate of each video monitoring device, thereby not only being capable of meeting requirements of video transmission, but also being capable of effectively utilizing the wireless network bandwidth. The method and the device disclosed by the invention are applicable to LTE based wireless video remote monitoring, and are particularly applicable to application scenarios such as subways, high-speed rails and the like where the real-time video transmission concurrence is great in fluctuation is great and the wireless channel bandwidth is high in variation.

The invention discloses a tracking and positioning system and an information transmission coding method. The positioning system includes an intelligent terminal, a cloud server, and an information device. The information device includes an NFC chip and a device housing. The NFC chip is embedded and installed in the device housing. The chip stores the identity information of the holder in accordance with the transfer storage coding method. The smart terminal supports the NFC sensing function, and the smart terminal and the information device communicate through near-field wireless communication. The smart terminal is a sensing device, and the information device is a passive device. Two-way data transmission is performed between the smart terminal and the cloud server through the 3G wireless network. The information device of the present invention does not require additional power supply, which avoids the inconvenience of charging or battery replacement; the intelligent terminal does not need to install any software, and realizes tracking and positioning by sensing the NFC chip.

The present invention discloses an outer-loop power control method comprising presetting the duration of the adjustment period and the target block error ratio (BLER)of outer-loop power control; calculating, on the real-time basis, the number of accumulated absolute error blocks of transmission data blocks during the current outer-loop power control adjustment period, and directly up-regulating the target value of signal to interference ratio (SIR Target) and ending the current outer-loop power control adjustment period and starting the next outer-loop power control adjustment period if the number of accumulated absolute error blocks is greater than the preset direct up-regulation threshold; calculating the BLER mean value within the outer-loop power control adjustment period when any outer-loop power control adjustment period reaches to the duration and adjusting SIR Target based on the BLER mean value and preset target BLER. SIR Target can be adjusted in time and the convergence speed thereof can be improved through the method disclosed in the invention.

The photo detector includes following parts: a P substrate; a quadratic N trap area prepared on P substrate; being prepared on N trap area, an annular shallow-channel isolation area is encircled by annular N trap area; being prepared on N trap area, a P+ region is encircled by annular shallow-channel isolation area so as to constitute anode of photo detector array; being prepared on N trap area, an annular N+ area is encircles the shallow-channel isolation area; being prepared on P substrate, an annular second P+ encircles the quadratic N trap area; a plane spiral metal electrode connects each unit block in array form one by one in first P+ area; an annular metal electrode is connected to N+ area; a annular metal electrode is connected to second P+ area.