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LAN communication method

A communication method and technology of a local area network, which is applied in the field of establishing a connection between a client and a server on a local area network, can solve problems such as connection failure, and achieve the effect of convenient search for a server

Inactive Publication Date: 2007-03-14
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the state of the DVR host is unpredictable, if the DVR host that the client w

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] The following describes the technical solution of the present invention with the control of the client on the DVR host in the local area network.

[0024] As a DVR host in the local area network, it has its identity identification mark (the ID of the DVR host). The client first broadcasts an IP packet with a specific identifier to the LAN. Considering the unreliability of the UDP protocol, the client needs to send the IP packet twice.

[0025] All DVR hosts in the network, after receiving the IP packet sent by the client, compare the content by analyzing the IP packet, if the DVR host with the above-mentioned identification mark receives the IP packet, it will respond to the IP packet, and Return information including the local IP address and port number to the client.

[0026] After the client receives the returned response information, it knows the information such as the IP address and port number of the DVR host, and adds these information to the DVR host list of t...

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PUM

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Abstract

This invention relates to network technique and to one local network customer end and servo connection method, which comprises the following steps: customer end according to servo label information sending broadcast; when needing connection, customer end has special label servo to send connection requirement with relative label servo, it gives back its IP address to customer end; customer end establishes connection to servo.

Description

technical field [0001] The invention relates to network technology, in particular to a method for establishing connection between a client and a server on a local area network. Background technique [0002] On the local area network, the client needs to communicate with the server to realize the control of the server by the client. First, it is necessary to establish a communication link between the client and the server. A typical example of this is the use of hard disk video recorders (DVR) on the network. In general applications, the DVR host (server) is placed at the front end of the site without staff on duty, such as: coal mine bottom, bank, toll station, etc. The staff can realize remote monitoring through the remote PC (client), and conduct unified management of all DVR hosts. It can also control a single DVR host separately, such as controlling the camera's up and down, left and right, far and near, and zooming operations. It can also set various recording modes, ...

Claims

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Application Information

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IPC IPC(8): H04L12/28
Inventor 杨毅尤金刚彭世伟
Owner SICHUAN CHANGHONG ELECTRIC CO LTD