62results about How to "Reduce Communication Interference" patented technology

The invention discloses a wireless temperature and humidity monitoring device for a high-voltage switch cabinet. The device is characterized by comprising a plurality of monitoring terminals, a plurality of monitoring master stations and a background upper computer, wherein each switch cabinet is provided with a monitoring master station and a plurality of monitoring terminals; the monitoring master station performs data transmission with the monitoring terminals by adopting radio frequency communication modules at the two frequency bands of 433M and 2.4G; and the monitoring master stations perform RS-485 communication with the upper computer. The device is more rational in design and can be used conveniently and safely; and the electrical equipment contact temperature and environmental temperature and humidity of the switch cabinet can be monitored on line in real time.

The invention discloses a trusted energy-saving data convergence method for a wireless sensor network. The method comprises the following steps of: cluster head election, cluster migration and sensor node clearing-up, wherein all uncovered nodes are taken as cluster head nodes or become multi-hop member nodes of other clusters through neighbor nodes to finish node convergence. By the energy-saving data convergence method, the energy load of the whole network is equally allocated to each sensor node, and simultaneously, a data convergence technology is utilized to reduce energy consumption, eliminate data redundancy and increase available information streams from a source node to a base station, thereby fulfilling the aim of prolonging the service life of the whole network.

The invention relates to an automatic frequency changing method of a wireless device, which uses at least two different communication frequency bands to perform data transmission, and the reasons of communication failure are judged by using the successful times of data transmission on each communication band, and whether a frequency changing program is necessary to be implemented is determined based on different reasons. Therefore, the automatic frequency changing method provided by the invention can appropriately implement the frequency changing program to achieve the effects of saving electric energy and avoiding communication interference caused by other wireless devices.

The invention discloses an unmanned aerial vehicle airborne vision intelligent processing system and method. The system includes an unmanned aerial vehicle, an optoelectronic pod mounted on the unmanned aerial vehicle, and an information processing module. The information processing module includes an image recognition and tracking submodule, The gimbal PID controller sub-module and the parameter correction sub-module, the parameter correction sub-module obtains the detection data of the gyroscope, accelerometer and geomagnetometer, and corrects the lens rotation angular rate parameter output by the image recognition and tracking sub-module through the detection data. The method includes the following steps: collecting an image, identifying a target in the image, outputting a lens rotation angular rate parameter, correcting the lens rotation angular rate parameter, and controlling the rotation of the photoelectric pod lens through a PID controller. The intelligent processing system and method for on-board vision of the unmanned aerial vehicle of the present invention can solve or reduce the over-rotation phenomenon, the rotation of the photoelectric pod lens is stable, the shake of the lens is greatly reduced, and the captured image is clearer.

Provided are a frequency band replacement method and device, the method comprising: a first base station receives identifier information used to identify a second base station, the identifier information being transmitted by a terminal after an intensity of a wireless signal transmitted by the second base station in a first frequency band is determined to be higher than a threshold, and the terminal pre-accessing the first base station and communicating with the first base station by using the first frequency band; and the first base station triggers, according to the identifier information, a procedure of transmitting a frequency band replacement request to the second base station. The present invention addresses the problem of serious communication interference caused by the same frequency band being used by a plurality of individuals or carriers to provide a wireless communication service in the related techniques, and in turn reduces communication interference.