Satellite in-satellite CameraLink interface and WiFi (Wireless Fidelity) interface conversion device and method

By designing a conversion device between the satellite's internal CameraLink interface and WiFi7 interface, the problems of insufficient transmission rate, high power consumption, large size, and opaque protocol conversion in satellite wireless communication were solved, realizing high-speed, low-power, and transparent data transmission to meet onboard requirements.

CN121333376APending Publication Date: 2026-01-13HARBIN INST OF TECH
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Patent Information

Application Number
CN202511361414.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-01-13

AI Technical Summary

Technical Problem

Existing satellite wireless communication technologies suffer from insufficient transmission rates, high power consumption and large size of communication equipment, as well as opaque protocol conversion, which cannot meet the needs of high-speed data transmission within satellites.

Method used

Design a satellite-based CameraLink interface to WiFi7 interface conversion device, including a core controller, wired module, wireless module and power module. It connects to DDR module, clock module, Flash module, JTAG module, USB-UART interface, M.2 interface and SD card via AXI-Stream bus to achieve high-speed data transmission and level conversion. It uses WiFi7 technology to provide a stable high-speed connection. The whole device power consumption is ≤15W and supports the Base mode of CameraLink interface.

Benefits of technology

It achieves high-speed wireless transmission, meets the requirements for high-definition image and high-speed data stream transmission, and keeps power consumption and size within the requirements of spaceborne systems, ensuring transparent and complete signal transmission.

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Abstract

The invention provides a device and a method for converting a CameraLink interface and a WiFi (Wireless Fidelity) interface in a satellite, belongs to the technical field of wireless communication, and aims to solve the problems of insufficient transmission rate, high power consumption of communication equipment, large size and opaque protocol conversion in the existing satellite wireless communication technology. The device comprises a core controller, a wired module, a wireless module, a power supply module, a DDR (Double Data Rate) module, a clock module, a Flash module, a JTAG (Joint Test Action Group) module, a USB-UART (Universal Asynchronous Receiver / Transmitter) interface, an M.2 interface and an SD (Secure Digital) card, and the method comprises the following steps of: sending wired data to a PL end after level conversion and isolation, transmitting the wired data to the wireless module through a PCIe (Peripheral Component Interconnect Express) interface after protocol analysis and format unification, and sending the wired data in a wireless mode; and a receiving end executes an inverse process and recovers to an original wired signal, thereby realizing transparent transmission.
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