Vehicle-mounted ethernet communication plug-in
By designing an in-vehicle Ethernet communication plug-in, the problem of hardware platform scalability was solved, enabling high-speed data transmission and system expansion, providing stable network connectivity and management, and meeting the data interaction needs of the new hardware platform.
Patent Information
- Application Number
- CN202310801962.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-30
- Publication Date
- 2026-06-02
- Estimated Expiration
- 2043-06-30
AI Technical Summary
The existing hardware platform designs of systems such as the dynamic monitoring system for train control equipment and the EMU driver operation information analysis system were finalized early on and cannot meet the current needs for system function expansion. New onboard communication devices need to be designed to achieve high-speed data transmission.
Design an in-vehicle Ethernet communication plug-in, including an MCU unit, a switching chip, a PHY chip, a high-speed signal connector, and a power connector, providing multiple Ethernet interfaces and power supply. It is managed through a power circuit, an overcurrent and overvoltage protection circuit, and a voltage and current detection circuit. It uses an ARM controller and an RS485 converter to expand the CAN bus and RS485 bus, and combines a temperature sensor and a memory for status monitoring.
It enables high-speed data interaction on the new hardware platform, provides star-shaped network connectivity, unifies the management of RS485 bus and CAN bus, meets system expansion requirements, and ensures stable operation of the equipment through power monitoring and temperature detection.