Method of video on demand, system and resource management equipment

Abstract

The invention provides a method of video on demand (VOD), a system and resource management equipment. The system comprises the resource management equipment, internet protocol digital modulator IPQAM equipment, a client and a VOD subsystem, wherein the resource management equipment is used for obtaining and storing resource information of each IPQAM equipment; the resource management equipment is also used for receiving selection request, selecting IPQAM equipment and frequency points in the resource information, and feeding back selected IPQAM equipment information and frequency point information to the VOD subsystem; the VOD subsystem is used for sending the selection request to the resource management equipment, receiving IPQAM equipment information and frequency point information fed back by the resource management equipment, and pushing a video stream to the IPQAM equipment corresponding to the IPQAM equipment information at the frequency points corresponding to the frequency point information; and the client is used for receiving the pushing stream of the IPQAM equipment. The scheme of the invention can reduce the cost for realizing video on demand, and saves frequency point resources.

Description

technical field [0001] The present invention relates to video on demand (VOD, Video On Demand) technology, in particular to a VOD method, system and resource management equipment. Background technique [0002] At present, each VOD subsystem implements its own digital modulator (QAM, Quadrature Amplitude Modulation) resource management independently, that is, each VOD subsystem uses its own Internet Protocol digital modulator (IPQAM, Internet Protocol Quadrature Amplitude Modulation) device. figure 1 It is a schematic diagram of video on demand through the VOD subsystem and IPQAM equipment. Each VOD subsystem is equipped with multiple IPQAM equipment from the same manufacturer. Each IPQAM equipment can provide multiple frequency points for pushing video streams to the client. . figure 1 Among them, VOD subsystem 1, IPQAM-1, IPQAM-2 and IPQAM-3 are provided by manufacturer A, VOD subsystem 2, IPQAM-4, IPQAM-5 and IPQAM-6 are provided by manufacturer B, IPQAM-1, IPQAM- 2 and ...

AI Technical Summary

Problems solved by technology

[0005] 1) Each VOD subsystem needs to purchase its own IPQAM equipment, which leads to higher system construction costs

[0006] 2) IPQAM equipment can provide QAM frequency resources. Since each VOD subsystem is a heterogeneous system, the QAM resources between them cannot be shared, that is, IPQAM equipment cannot be shared, and IPQAM equipment is limited, that is, the available frequency points are Limited, so it often happens that the VOD subsystem provided by manufacturer A is short of QAM frequency resources due to the large number of users, while the VOD subsystem provided by manufacturer B is always idle due to the small number of users.

This unbalanced use of QAM resources has caused a waste of IPQAM equipment, that is, a waste of frequency point resources.

[0007] It can be seen that using the existing VOD system for video on demand has the defects of high cost and waste of frequency resources

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