The data communication system includes CAN bus and LIN bus.数据通讯系统包括CAN总线与LIN总线。
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CAN bus is a serial communication line for real-time applications. It is an in-vehicle multi-threaded communication network with high-speed data transmission and fault detection capabilities.CAN总线是一个时实应用串行通讯线路。它是一个车载多线程通信网络，具有高速数据传输和故障检测能力。 |
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The CAN bus is a differential bus. The CAN bus serial data bus (H) and the CAN bus serial data bus (L) are driven from rest or idle levels to opposite extremes. The idle level of approximately 2.5V is considered recessive transmitted data and interpreted as a logic 1. When driving the line to its limit, the High Speed CAN Bus Serial Data Bus (H) will rise by 1V and the High Speed CAN Bus Serial Data Bus (L) will drop by 1V. A limit voltage difference of 2V is considered dominant transmission data and interpreted as logic 0.CAN总线是差分总线。CAN总线串行数据总线(H)和CAN总线串行数据总线(L)从静止或闲置电平驱动到相反的极限。大约为2.5V的闲置电平被认为是隐性传输数据并解释为逻辑1。将线路驱动至极限时，高速CAN总线串行数据总线(H)将升高1V而高速CAN总线串行数据总线(L)将降低1V。极限电压差2V被认为是显性传输数据并解释为逻辑0。 |
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The communication medium of the CAN bus is a twisted pair, and the twisted pair terminals are two 120Ω resistors.CAN总线的通讯介质是双绞线，双绞线终端为2只120Ω的电阻。 |
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LIN bus is a low-cost serial communication system used in automobile distributed electronic control systems. It is mainly used for serial communication of intelligent sensors and actuators.LIN总线是用于汽车分布式电控系统的一种低成本串行通信系统，主要用于智能传感器和执行器的串行通信。 |
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Features of LIN bus: UART-based data format, single master and multiple slave structure, single line transmission: 0–12V, communication rate: 19.2kbps.LIN总线的特点：基于UART的数据格式，单主多从结构，单线传输：0–12V，通讯速率：19.2kbps。 |
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Vehicle network topology diagram (configuration 1)车辆网络拓扑结构图(配置1)
Vehicle network topology diagram (configuration 2)车辆网络拓扑结构图(配置2)
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System description (data communication system)系统说明(数据通讯系统)
