Method for improving finding ability of local area network device

Abstract

The invention discloses a method for improving finding ability of a local area network device. The method comprises steps that A, after a server end is connected to the network, the server end establishes two threads, wherein the first thread periodically broadcasts the service IP and port information of the server end to the outside once at the time interval of T1 and the second thread uses an mDNS protocol to publish the service IP and the port information of the server end when being started at an interval of 30 seconds; B, after a client is connected to the network, the client receives the service IP and the port information of the server end sent by the two threads, and queries the server end according to the service IP and the port information of the server end, and meanwhile, the server end sends broadcasting, multicasting and mDNS messages to the client in the local area network; and C, the client starts the threads to query the server end at the time interval of T2 periodically. According to the invention, by combining the multicasting, the broadcasting and the mDNS finding technology, the finding ability of the client device in the local area network is improved.

Description

technical field [0001] The invention relates to the technical field of multi-device local area network and mutual discovery of devices in a complex environment, in particular to a method for improving the discovery capability of local area network devices. Background technique [0002] At present, the mutual discovery and mutual communication between devices in the local area network are often broadcast and sent in the following four separate ways: [0003] The first type, unicast (Unicast) transmission: a point-to-point network connection is realized between the sender and each receiver. If a sender transmits the same data to multiple receivers at the same time, it must also copy multiple copies of the same data packet accordingly. If a large number of hosts want to obtain the same copy of the data packet, it will cause heavy burden on the sender, long delay, and network congestion; in order to ensure a certain quality of service, hardware and bandwidth need to be increase...

AI Technical Summary

Problems solved by technology

Therefore, the scope of broadcasting is very small, and it is only valid in the local subnet, and broadcast transmission is controlled by routers and network devices