Car IP Camera
Based on the development of digital signal processing technology (DSP) and network technology, video technology has evolved from analog technology to a mixture of digital and analog DVR, and then to the development of digital video such as IP video systems. IP video systems differ from traditional analog systems and DVRs in distance, scalability, and cost. In terms of distance, the network server in the IP video system is directly connected to the network, there is no limitation of Cable length and signal attenuation, and there is no geographical concept; in terms of expansion capability, this system has no limit to the number of devices, and adding devices only means With the expansion of IP addresses. In terms of cost, the IP video system occupies less bandwidth and can use the existing network to save the cost of wiring and network construction during installation.
The IP video system includes a network video server and an IP camera, where the IP camera is the front-end processing part of the system. The CCD / CMOS image sensor converts the light signals of the scene into electrical signals, which are converted into digital signals and then transmitted to the DSP memory through the data interface. DSP is the main processor chip of the digital image processing and compression of the IP Camera and the operating system. It completes the image compression and encoding and sends the data stream to the hard disk or other storage devices for storage. As you can imagine, the front-end device has a great influence on the quality of the video image. Therefore, the choice of the processor plays an important role in how developers can successfully meet the design requirements of the Internet of Vehicles digital video products.
Freescale's i.MX53 chip solution
Freescale's i.mx53 chip is such a model that can merge the performance of MCU and DSP, not only can overcome the defects of ARM core + DSP, but also retain the two advantages. Among them, i.MX536 is an automotive-oriented processor that meets automotive-grade standards and has many interfaces. The core processor used as an intelligent terminal for Internet of Vehicles meets the standards of the new generation of Internet of Vehicles industry.
Tu Freescale's i.mx53 chip is such a model that can integrate the performance of MCU and DSP, not only can overcome the defects of the ARM core + DSP, but also retain the advantages of the two.
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