Bus instrument based on ethernet

Abstract

The invention discloses a bus instrument based on ethernet. The bus instrument is characterized by comprising ARM, which is individually connected to an ethernet receiving and emitting module, a power supply module, an input / output unit, a communication interface, a human-computer interface, and a memory unit. On the basis of conventional instruments, an ethernet function is added; conventional instruments only have the input function, while the provided instrument has a high-side output function; moreover, the communication interface is multifunctional and comprises CAN, K-LINE / LIN, RS485 and RS232; and the bus instrument has abundant input functions and thus can adapt to different car types. Due to the development of internet of vehicles, the instrument will become a comprehensive information system; the provided bus instrument has the advantages that the instrument functions are enhanced, the human-computer interface elements are abundant, the vehicle mounted electronic devices are integrated, and the production and maintenance cost is reduced.

Description

technical field [0001] The invention relates to an Ethernet-based bus instrument (MULTIC S), which is used to expand the functions of the CAN bus instrument to achieve the purpose of enhancing the function on the original bus instrument, and belongs to the field of instrument technology. Background technique [0002] At present, bus instruments on domestic buses basically use CAN to communicate with other ECUs connected to the bus. With the rise of new energy vehicles, more and more ECUs are connected to the bus. , Higher requirements are also put forward for the transmission rate of information. The CAN bus has its own limitations in the transmission rate. At the same time, for the update of the instrument firmware, most of them rely on the special CAN bus tool to update the computer. The disadvantage is that CAN Bus tools are special tools that are expensive and easy to damage, resulting in high maintenance costs for the product. At present, including LIN, CAN / CAN-FD and ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an Ethernet-based bus instrument with strong functions, low production and maintenance costs, and integrated vehicle-mounted electronic interconnection, which solves the problem that traditional instruments can only provide drivers with necessary and A small amount of data information is far from meeting the new technology and high-speed requirements of modern automobiles. Due to the current CAN bus transmission rate limitation, the corresponding transmission time will increase, which affects production efficiency.

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