3results about How to "Fast networking speed" patented technology

The networking method for power line carrier communication comprises the following steps: judging whether networking is carried out for the first time or not, if the networking is carried out for the first time, after intelligent equipment is electrified and started, searching a central node of a current line, closing a white list of the central node in a gateway, and starting networking; if the current line is not networked for the first time, after the intelligent equipment is electrified and started, reading a network identifier stored in a storage medium of the intelligent equipment, searching and judging whether the network identifier of the central node of the current line is the same as the network identifier of the intelligent equipment or not, if so, sending a network access request, and if not, continuing searching; and after receiving the network access request, the central node verifies whether the network identifier of the intelligent equipment is in a white list, agrees to access the network if the network identifier is in the white list, and rejects the network if the network identifier is in the white list. According to the technical scheme of the invention, the security of power line carrier communication networking is improved.

The application provides a power grid management system adaptive networking method and device based on a heterogeneous dual-mode network, which comprises the following steps: a proxy coordinator accesses a central coordinator through a wired link, the central coordinator acquires the position and data processing capacity information of the proxy coordinator; a wired link is established between each proxy coordinator, and a wireless networking request is sent to the central coordinator through the wired link; the proxy coordinator broadcasts according to the access permission, and establishes a wireless link with the central coordinator or the proxy coordinator matched with the access permission; a site accesses the proxy coordinator through a wired link, the proxy coordinator acquires the maximum data volume of the site and calculates the load volume after the site accesses, and determines the feedback access permission or forwards the wireless networking request to the adjacent proxy coordinator according to the load volume, until the wireless connection between the site and the proxy coordinator is established. The application has the advantages of convenient networking process, high networking efficiency and coordination accuracy, strong stability and the like.

The invention discloses a PLC (Programmable Logic Controller) router and an application thereof in increasing a PLC medium-frequency band data transmission distance, and belongs to the field of power line carrier communication. The PLC router is located between two adjacent PLC networks and comprises a power conversion circuit, an STA module, a CCO module, a PA circuit and an isolator. The power conversion circuit is connected with the STA module, the CCO module and the PA circuit through positive and negative electrode power lines and provides a direct-current stabilized power supply, the STA module is connected with a previous PLC network through a power line, the STA module is connected with the CCO module through a serial port, the CCO module is connected with the PA circuit through a linear control line, and the CCO module is connected with a next PLC network through a power line; and the isolator is connected in series with the power lines of the front and rear sections of the PLC network. The PLC router integrates logic units such as STA, CCO, PA and the like, and realizes the functions of transmission signal enhancement, multi-network-segment signal isolation and the like.