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Types of Camera Module Interfaces
创建于2024.11.28
Camera modules come with various types of interfaces, each designed for specific application scenarios technical requirements. The common types of interfaces are as follows:
1. BNC Interface
Purpose: Primarily used in analog cameras for outputting video information.
istics: The BNC interface is female, corresponding to the male BNC plug. Coaxial cables offer long transmission distances and stable signals, making them widely in communication systems, high-end monitors, and audio equipment.
Power Supply: Does not supply power through the BNC interface; requires a separate power interface.
2 .RJ45 Network Interface
Purpose: The main interface for modern network cameras, used for network connection and data transmission.
Characteristics: Connects to other devices a network port or switch, providing 12V external power.
Power Supply: Requires a separate power interface.
3. POE Interface
Purpose: Provides both network signals and power through the same wire.
Characteristics: POE interface cameras can directly connect to POE recorders or POE switches, simplifying wiring.
Supply: Supplies power through the network port.
4. USB Interface
Purpose: Widely used in video conferencing, online streaming, security applications, and homesCharacteristics: Common USB interface types include USB1.1, USB2.0, and USB3.0, each supporting different transmission speeds and data formats USB2.0 is common, while USB3.0 is suitable for high-definition or high-frame-rate cameras.
Power Supply: Supplies power through the USB interface5. DVP Interface
Purpose: Commonly used in embedded systems and mobile devices.
Characteristics: DVP is a parallel interface that requires PCLK,SYNC, HSYNC, and D[0:11] — which can be 8/10/12bit data depending on the ISP orband support. DVP interfaces have limited signal integrity and speed.
Power Supply: Requires a separate power interface.
6. MIPI (CSI) Interface
Purpose Widely used in high-end mobile devices and high-performance cameras.
Characteristics: MIPI uses low-voltage differential signaling (LVDS), supporting high-speed transmission strict wiring requirements but strong resistance to interference. It can support up to 4 lanes, with 2 lanes generally meeting most needs.
Power Supply: Requires a power interface.
Summary
Each type of camera module interface has its own advantages and disadvantages. The choice of interface type should be based on specific application scenarios and technical. For instance, BNC interfaces are suitable for applications requiring long-distance transmission and high stability; RJ45 or POE interfaces are ideal for network connectivity and management; USB or DVP interfaces are appropriate for portable and embedded devices; and MIPI interfaces are best for high-performance and high-bandwidth demands.
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