5results about How to "Solve co-channel interference" patented technology

The invention discloses a downlink message control method of a star topology network and a server for executing the control method. The star topology network comprises a server, a plurality of gateways and a plurality of nodes. The nodes communicate with the server through the gateway, and the server allocates a timer for each of the gateways. The control method comprises the following steps: 1, judging whether a node is newly accessed to the star topology network; if so, entering the step 2; Step 2, establish a node-gateway topology relationship to determine a coverage area of each gateway and a coverage area of each node; 3, allocating one of a plurality of downlink frequency points to a newly access node; 4, requesting the gateway to send the message request when the frequency requiredfor the message request to be sent by the gateway is not used by the gateway in the coverage area of the destination node of the message request. The invention can more efficiently solve the problem of co-frequency interference of downlink communication of star topology network.

This specification relates to the field of satellite communication technology, and provides a beam management method, device, chip, and storage medium. The method includes: a user equipment acquiring the serving beam corresponding to its current position; the serving beam is the beam corresponding to a target beam index, the target beam index being determined based on the current position and a beam deployment map of the satellite network. In the beam deployment map, the global coverage of the satellite network is divided into multiple fixed ground positions, and each position is bound to a beam index. The embodiments of this specification can avoid co-channel interference between adjacent positions in different cells and reduce the processing complexity and resource overhead caused by frequent beam changes in positions and frequent changes in neighboring cell positions.

The invention aims at innovating a wireless interference signal processing system and a wireless interference signal processing method. Two rocket continuous wave interference suppression methods based on an antenna specific signal emission sequence are matched. The first method comprises the steps that the initial state of the rockets is set to be a normally-open state, and antennas newly added to the midpoints of the two rockets transmit closed signals. When the continuous wave interference signal exists, the interfered rocket receives the closed signal firstly, and then the continuous wave interference signal is suppressed by means of the closed signal. According to the second method, the initial state of the rocket is set to be a closed state, the newly-arranged antenna transmits continuous wave signals, under the condition, the interfered rocket receives continuous wave interference signals firstly and then receives signal receiving starting signals, and the effect of continuous wave interference suppression is achieved through the difference of the successive receiving sequences. According to the invention, the problem of continuous wave signal interference during the simultaneous total test of the two carrier rockets is effectively solved, the spaceflight test environment is improved, and the test work quality and efficiency are improved.

The invention discloses an electric power facility intelligent alarm device based on wireless network communication, and the device comprises two telegraph poles which are vertically arranged in a mirroring manner, a fixed bearing frame is horizontally and fixedly assembled in the middle of the two telegraph poles, and a distribution box and an alarm assembly are fixedly assembled on the lower surface of the fixed bearing frame; the alarm assembly is located on one side of the distribution box, a transformer is fixedly assembled above the fixed bearing frame, and the solar energy conversion assembly is arranged on the other side of the group of telegraph poles; the transformer is connected with a transmission cable, the transmission cable is fixedly assembled on two groups of fixing frames, and the two groups of fixing frames are fixedly assembled at the upper ends of corresponding telegraph poles; and cable inspection assemblies are arranged on the transmission cables on the opposite sides of the two groups of telegraph poles.

The present invention discloses a multi-purpose shield machine vacuum suction cup segment assembly remote control system, including a transmitter, a control mainboard, a receiver and a housing. The transmitter is connected to the control mainboard and is located in the housing. The receiver is installed on the shield machine and is used to receive instructions sent by a matching receiver. The receiver is installed on the target device and adopts a modular plug-in structure, which is convenient for expansion and upgrading. The output can be intelligently adjusted and is suitable for various types of output control, which is convenient for maintenance. The installation is simple and quick, which greatly shortens the installation and debugging time of the equipment. By setting the output control type of the receiver, the control system can control different equipment, including the shield machine vacuum suction cup grab plate and the shield machine mechanical grab plate. The wireless communication data of this system is transmitted in a secure encrypted manner. When there is co-frequency interference, the frequency used by the remote control system can be changed to ensure the normal operation of the remote control system.