Communication system, relay device, and device to be diagnosed

• Main Authors: WATANABE SEIGO, MURAKAMI RYOSUKE, INAGAKI TOKUYA, SUGAWARA, SHINNOSUKE
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention provides a communication system, a relay device, and a device to be diagnosed. The communication system includes a relay device and a diagnosis subject device. The relay device includes a port configured to connect a diagnostic tool. The device to be diagnosed is connected to the relay device via a bus. When the device to be diagnosed has received specific data originating from the diagnostic tool, the device to be diagnosed transmits an inquiry signal for inquiring a monitoring result of the relay device with respect to the specific data. The relay device determines whether the specific data is legitimate data from the diagnostic tool in response to the interrogation signal. The relay device transmits the monitoring result including the determination result to the device to be diagnosed. 本公开提供通信系统、中继装置以及诊断对象装置。所述通信系统包括中继装置和诊断对象装置。所述中继装置包括配置为连接诊断工具的端口。所述诊断对象装置经由总线连接至所述中继装置。当所述诊断对象装置已经接收到来源似乎为所述诊断工具的特定数据时，所述诊断对象装置发送用于询问所述中继装置关于所述特定数据的监控结果的询问信号。所述中继装置响应于所述询问信号判定所述特定数据是否为来自所述诊断工具的合法数据。所述中继装置向所述诊断对象