Hi3518E是用于民用的新一代IP摄像机SoC。它具有集成的ISP，优化的图形处理算法，编码前，和H.264编码器。通过采用先进的低功耗技术和低功耗结构，Hi3518E是行业领先低比特率，高画质，低功耗。Hi3518E IP相机的EBOM成本通过集成DRAM、POR、RTC和音频编解码器显著降低，并支持各种传感器水平和时钟输出。与其他海思康DVR和NVR SDK类似，Hi3518E SDK允许快速大批量生产，促进IP摄像头、DVR和NVRs的系统布局。
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Hi3518E 720p IP-Cam SOC
Key Specifications
Processor Core
● ARM9@Max. 440 MHz, 16 KB I-cache, and 16 KB D-cache
Video Encoding Protocols
● H.264 main profile
● H.264 baseline profile
● MJPEG/JPEG baseline encoding
Video Encoding Performance
● 2-megapixel maximum resolution for H.264 encoding
● Maximum real-time encoding performance of H.264&JPEG streams: 720p@25 fps+720p@3 fps JPEG snapshot
● Multi-stream encoding
● Bit rate control in CBR, VBR, or ABR mode, bit rate ranging from 16 kbit/s to 20 Mbit/s
● Encoding of eight ROIs
● OSD overlay of eight regions before encoding
Integrated Memory
● Integrated 16-bit DDR2
● Maximum capacity of 512 Mbits
Intelligent Video Analysis
● Integrated IVE, supporting various intelligent analysis applications such as motion detection, boundary security, and video diagnosis
Video and Graphics Processing
● Video pre-processing, including 3D denoising, image enhancement, edge enhancement, and deinterlacing
● Anti-flicker for output videos and graphics
● 1/16x to 8x video scaling
● 1/2x to 2x graphics scaling
● OSD overlay pre-processing for eight regions
● Hardware graphics overlay postprocessing for the videos at two layers (video layer and graphics layer 1)
ISP
● AE and AWB for adjustment
● Highlight compensation, backlight compensation, gamma correction, and color enhancement
● Defect pixel correction, denoising, and digital image stabilizer
● ISP tuning tools for PCs
Audio Encoding/Decoding
● Voice encoding/decoding in compliance with multiple protocols by using software
● G.711, ADPCM, and G.726 protocols
● Echo cancellation
Security Engine
● Various encryption and decryption algorithms using hardware, such as AES, DES, and 3DES
● Digital watermark
Video Interfaces
● Input:
－ 8-, 10-, or 12-bit RGB bayer inputs, a maximum of 74.25 MHz clock frequency
－ BT.601 and BT.656
－ Compatibility with mainstream HD CMOS sensors provided by SONY, Aptina, OV, and Panasonic
－ Compatibility with CCD sensors
－ Various sensor levels supported
－ Programmable sensor clock output
－ Video inputs at 1080p@30 fps or 720p@30 fps
● Output
－ One BT.1120 VO interface for connecting to the external HDMI or SDI, maximum performance of 1080p@30 fps
Audio Interfaces
● Integrated audio CODEC, supporting 16- bit audio inputs and outputs
Peripheral Interfaces
● POR and external reset
● One integrated high-precision RTC
● One integrated low-speed ADC with dual channels
● Three UART interfaces
● One IR interface, one I2C interface, one SPI master/slave interface, multiple GPIO interfaces
● One SDIO 2.0 interface, supporting SDHC
● Maximum four PWM interfaces
● One USB 2.0 host port
● RMII and MII modes; 10/100 Mbit/s fullduplex or half-duplex mode, PHY clock output
External Memory Interfaces
● SPI NOR flash interface
－ 1-, 2-, or 4-bit SPI NOR flash
● Booting from the NOR flash
SDK
● SDK based on Linux-3.0.y
● High-performance H.264 PC decoding library
Physical Specifications
● Power consumption
－ Typical power consumption of 900 mW
－ Multi-level power-saving mode
● Operating voltages
－ 1.2 V core voltage
－ 3.3 V I/O voltage, and 3.8 V margin voltage
－ 1.8 V voltage of the internal SDRAM
－ Operating temperature ranging from 0°C (32°F) to +70°C (158°F)
● Package
－ RoHS, BGA220
－ Ball pitch of 0.65 mm (0.026 in.) and body size of 11 mm x 11 mm (0.43 in. x 0.43 in.)
The Hi3518E is a newgeneration IP camera SoC for civilian use. It has an integrated ISP, optimized algorithm for graphics processing before encoding, and an H.264 encoder. By using the advanced low-power technology and low-power architecture, the Hi3518E is industry-leading in
the aspects of low bit rate, high picture quality, and low power consumption. The EBOM costs for the Hi3518E IP camera are significantly reduced by integrating the DRAM, POR, RTC, and audio CODEC and supporting various sensor levels and clock outputs. Similar to other HiSilicon DVR and NVR SDKs, the Hi3518E SDK allows rapid mass production and facilitates system layout of IP cameras, DVRs, and NVRs.
