Network camera adopting dual-kernel control
A network camera, nuclear control technology, applied in the direction of image communication, color TV components, TV system components, etc., can solve problems such as difficulty, heavy chip load, etc., to achieve a short development cycle, high flexibility, low cost The effect of chip load proportion
Active Publication Date: 2012-10-10
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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The dedicated DSP for multimedia processing integrates the superior functions of MCU and DSP, and adds hardware instructions dedicated to media processing, which greatly improves its efficiency in processing multimedia data such as video. When using software algorithms , can easily realize the algorithm conversion of the video codec standard and the upgrade of the new standard without modifying the hardware, and the flexibility is very high, but it is very difficult to implement the highly complex MPEG4 or H.264 algorithm with software codec Large, and the load on the chip is relatively heavy
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[0026] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0027] Such as figure 1 and figure 2 As shown, a network camera adopting dual-core control described in the present invention includes a network camera hardware system 100, embedded software 200 and a network service center 300; the core of the network camera hardware system is a main control chip 110, and the main control The chip is connected with an image acquisition device 120, a data transmission interface device, a storage device 130 and a power supply 140 through an interface; the network service center is connected with the network camera hardware system through a data transmission interface device, and the main control chip includes The DSP core and ARM core realize the communication. The DSP core is used to collect, analyze and process...
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The invention discloses a network camera adopting dual-kernel control. The network camera comprises a network camera hardware system, embedded software and a network service center, wherein a core of the network camera hardware system is a master control chip which is connected with an image acquisition device, a data transmission interface device, a storage device and a power supply through interfaces; the network service center is connected with the network camera hardware system through the data transmission interface device; the master control chip comprises a digital signal processing (DSP) kernel and an advanced RISC machine (ARM) kernel, which realize communication in a mutual interruption way; the DSP kernel is used for collecting, analyzing and processing image data acquired by the image acquisition device; and the ARM kernel is used for realizing control functions of the interfaces, and transmitting control instructions to a DSP unit. The network camera has the advantages that due to the adoption of a dual-kernel control structural design, the load proportion of the chip is reduced, and the network camera is high in flexibility and short in secondary development period.
Description
technical field [0001] The invention relates to the field of digital image processing, in particular to a dual-core control network camera. Background technique [0002] In recent years, the emergence of embedded processing chips for digital image processing has laid a good material foundation for the hardware realization of high-speed image processing. In some professional fields, the application research of embedded chips for digital image acquisition, preprocessing, compression and decompression, etc. has begun. Utilizing embedded technology, using a dedicated chip and a real-time operating system, the video compression and network transmission functions are integrated into an embedded network camera, which can be directly connected to the Ethernet. The network camera is designed for the monitoring needs of the network environment, so It overcomes the shortcomings of the traditional CCTV monitoring system that cannot obtain video information through the network; on the m...
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IPC IPC(8): H04N5/225H04N7/26
Inventor 汤志伟江洪沈冬青李万才梅林齐力李震宇杨明
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY