Data acquisition method and node device

Abstract

The embodiment of the invention provides a data acquisition method and a node device, which are related to the field of communication and can reduce the need for server bandwidth under the premise of reducing time delay of an information release system. The method comprises the following steps that: according to parameter information of to-be-broadcasted advertisement data, a first node determines a to-be-broadcasted advertisement data segment which is not received yet currently by the first node, and acquires the parameter information of the to-be-broadcasted advertisement data, wherein the to-be-broadcasted advertisement data is composed of at least one to-be-broadcasted advertisement data segment; the first node performs data interaction with a second node, determines a neighbour node of the first node, wherein the neighbour node of the first node is the one having the data corresponding to the to-be-broadcasted advertisement data segment which is not received yet currently by the first node; and the first node transmits a data request for acquiring the data corresponding to the to-be-broadcasted advertisement data segment which is not received yet currently by the first node, to the neighbour node. The data acquisition method and the node device are used for an advertisement information release system.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data acquisition method and node equipment. Background technique [0002] In order to attract more customers to actively browse advertisements, advertising machines are installed in major public places today. The advertising machine can combine multimedia material information such as pictures, text, video, widgets (weather, exchange rate, etc.) sent by the server to form audio and video advertising files for playback. [0003] Existing information release systems mainly use a content delivery network (English: Content Delivery Network, CDN for short) as a distribution solution, that is, one server serves multiple terminals. Because the existing information dissemination system is usually too large, a node server needs to control more than 20,000 terminals. Therefore, when the server publishes advertisement information to all terminals, if the terminals have enough time to org...

AI Technical Summary

Problems solved by technology

In an emergency situation, for example, when the advertisement content displayed on the terminal needs to be replaced immediately, if the downlink bandwidth of the server is too low, the server will not be able to realize effective data distribution to all terminals in time, resulting in huge data distribution delay. The short-term data update requires better bandwidth requirements of the server

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