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Embedded hard disc video cassette recorder with large route number

A hard disk video recorder, embedded technology, applied in the direction of image communication, closed-circuit TV system, color TV components, etc., can solve the problem of rare embedded DVR and other problems, to reduce the risk of failure to work, clear picture quality, cost-effective Effect

Active Publication Date: 2010-09-15
深圳市高新投三江电子股份有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of cost, market demand, technical difficulty and other reasons, the mainstream products in the market are embedded DVRs with up to 8 channels, and embedded DVRs with a large number of channels are still rare in the market

Method used

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  • Embedded hard disc video cassette recorder with large route number
  • Embedded hard disc video cassette recorder with large route number

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Embodiment Construction

[0019] The present invention will be further described below in combination with specific embodiments and with reference to the accompanying drawings.

[0020] A 16-channel embedded hard disk video recorder as shown in the accompanying drawing includes cascaded video and audio A / D converters, embedded video and audio data compression encoding chips, and a local SATA hard disk.

[0021] The embedded video and audio data compression coding chip includes a main multi-core processing chip and a co-multi-core processing chip. The main multi-core processing chip and the co-multi-core processing chip adopt the embedded Linux operating system and are based on Philips SoC chip PNX8950. The main and auxiliary multi-core processing chips PNX8950 each include a MIPS processor core and two DSP processor cores. The three processor cores of the main multi-core processing chip and the three processor cores of the auxiliary multi-core processing chip are connected by PCI bus Communicate and wo...

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PUM

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Abstract

An embedded hard disc video cassette recorder comprises a video-audio A / D converter, an embedded video-audio data compression coding chip and a local SATA had disc which are cascaded. The compression coding chip comprises a main multi-core processing chip and an auxiliary multi-core processing chip. The inner parts of main multi-core processing chip and auxiliary multi-core processing chip respectively comprises an MIPS processor core and two DSP processor cores. The three processor cores of main multi-core processing chip and auxiliary multi-core processing chip are connected by PCI bus. Thevideo-audio A / D converter is input by the mode of at least four four-channel video audio mixed flow, and forms at least four four-channel parallel data collection systems with the DSP processor coresin the main multi-core processing chip and auxiliary multi-core processing chip. The embedded hard disc video cassette recorder of the invention can reduce the whole cost of DVR. Specifically the 16-route embedded DVR which is manufactured by chip of PNX8950 has higher cost performance. The stability of hard disc and operating system according to the invention is high. The adoption of double systems of main system and auxiliary system can reduce the risk of nonability for operating caused by system crash.

Description

technical field [0001] The invention relates to a video recorder, in particular to an embedded hard disk video recorder with a large number of channels. Background technique [0002] Digital Video Recorder (DVR for short) integrates all the functions of video tape recorder, screen divider, video switcher, controller and remote transmission system. It can connect alarm probe and siren to realize alarm linkage function. Carry out image motion detection, control the PTZ and lens through the decoder, and transmit images and control signals through the network. Existing DVR can be divided into two categories according to the system structure: PC-based DVR based on PC architecture and embedded DVR without PC architecture. Embedded DVR is an embedded system based on an embedded processor and an embedded real-time operating system. It uses a dedicated chip to compress and decompress and playback images. The embedded operating system mainly completes the control and management of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/806H04N7/18
Inventor 肖学波刘平
Owner 深圳市高新投三江电子股份有限公司
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