In today's digital high-definition security monitoring industry, IPCAM (network camera) + NVR (Network Video Recorder) network recording equipment is widely used. The most important function of NVR is to receive the digital video stream transmitted by IPCAM through a network connection, and to store and manage its data, realizing the convenient application advantages brought by the networked architecture. At the same time, through NVR management, you can view and browse images, play back images and store multiple network camera data at any time.
In early 2020, due to the impact of the epidemic, the Professional IPCAM market shifted to consumer cloud services. However, in recent years, due to the impact of inflation, cloud costs have increased, and yet we have returned to looking for NVR local storage solutions. Therefore, Novatek actively launched a new generation of NT98632 Security NVR smart surveillance video storage solution.
Novatek NT98632 is a professional SoC chip designed for multi-channel H265 HD NVR systems. It has built-in ARM Cortex CA53 dual-core CPU, H.264/H265 codec, MJPEG codec, Novatek CNN Gen2 hardware accelerator, 2D graphics accelerator engine, multi-channel HD video capture, 4K UHD display controller, RGMII Ethernet controller and 10/100 Ethernet PHY, USB2.0 port, SATA3.0 interface, AMBA Bus architecture provides users with high-performance HD NVR. At the same time, NT98632 also provides video pre-processing and post-processing, supporting high video quality applications for multi-format video input applications HD NVR.
Hardware design
NT98632 function iInterface
System block diagram
software application
Linux version
Linux 4.19
software architecture
HDAL is the Hardware Device Abstraction Layer (Hardware Device Abstraction Layer), which is a layer between the transparent hardware driver layer and the chip driver layer. Through function abstraction in the transparent device layer, a standardized API is made for typical streaming media modules, simplifying function implementation.
The same HDAL Framework is used in Novatek chips (such as IP-CAM, DVR, NVR, In-CAR Recorder(Dashcam), Access Control chips).
Video preview and recording process use cases
Application motherboard usage steps
Connect the application motherboard and peripheral related devices (ex. 12V power supply, HDMI screen, network cable)
Enable image output from the HDMI port, and can perform window split display of 1/16 frames.
List of available files
Application motherboard circuit diagram
Application motherboard parts list
Apply motherboard layout file (Layout file)
Application motherboard parts location diagram
Apply motherboard wiring specifications
Application Specifications for NT98632 Design
NT98632 datasheet
►Scenario application diagram
►Product entity diagram
NOVATEK_Surveillance_Solution_Introduction-NOVATEK_Surveillance_Solution_Introduction
►Display board photo
►Solution block diagram
►Core technology advantages
(1) High image quality and high performance (2) Excellent H.265 encoding and decoding capabilities (3) Can be connected to multi-channel high-definition image IP-Cam (4) Integrated HDMI, VGA, BT1120 image output interface (5) I2S audio interface, RGMII network transmission interface (6) USB2.0, SATA3.0 storage interface (7) Built-in RTC, reduce BOM cost
►Project specifications
(1) Chip core ARM Cortex A53 Dual Cores (2) Memory 2GB 32-bit bus width DDR3/DDR4 (3) H.264/H.265 Encoder/Decoder (4) AI computing power 0.75T (5) Power input uses 12V/2A (6) System Linux OS (7) 8CH 4Mp NVR (8) 16CH 2Mp NVR (9) 8CH/16CH 2Mp AI NVR Q&A Q1. What operating systems does NT98632 support? A: Support Linux, Novatek HDAL system framework, maintain consistent API interface, cross-platform/chip universal Q2. What is the maximum frequency of the NT98632 system? A: Can support up to 1GHz Q3. What is the maximum frequency of NT98632 DRAM? A: DDR4 can support up to 1200 MHz Q4. What PHYs does NT98632 support? A: As long as it complies with RGMII or RMII interface, it can be supported Q5. Is there any limit on the capacity of the NT98632 SD card? A: All SD capacities currently on the market can be used. Q6. What is the maximum output of NT98632 HDMI and VGA? A: HDMI can output up to 4K2K, and VGA can output up to 1080P/60fps.
