1 results about "Frequency-hopping spread spectrum" patented technology

The application relates to the technical field of intercom communication, and discloses a multi-scene adaptive intercom communication method and system based on a radio Mesh, wherein the method comprises the following steps: identifying the scene type code of a current intercom node, and broadcasting a node discovery frame to surrounding intercom nodes; calculating the comprehensive score of a neighbor link quality according to the node discovery frame, and determining a link mode flag word together with the reference signal receiving power detected by a cellular network module; carrying out noise reduction on a first voice signal collected by a microphone according to the scene type code, obtaining a second voice signal, carrying out encryption, generating an encrypted audio frame, and transmitting the encrypted audio frame through a radio Mesh frequency hopping spread spectrum channel or a cellular network channel pointed by the link mode flag word; and the application solves the problem that the existing Bluetooth chain topology single node disconnection leads to full link fracture, and realizes adaptive call quality guarantee in multiple types of differentiated noise scenes such as motorcycle riding, extremely cold skiing, surfing and referee law enforcement.