DATA RELAY APPARATUS

摘要

A first receiver receives an activation signal from a first network and gives the activation signal to an input side of a second transmitter via a first connection line; thereby, the activation signal is sent out via the second transmitter to a second network. Thus, the activation signal is not directly transmitted from the first network to the second network; instead, the activation signal is transmitted by using conversion functions of the first receiver and the second transmitter. This configuration can prevent occurrence of distortion or attenuation in the activation signal. The activation signal from the first network thus enables ECUs belonging to the second network to be activated certainly without delay.

主权项

1. A data relay apparatus provided in between a first network and a second network to relay data communication between communication nodes belonging to the first network and communication nodes belonging to the second network,
the data relay apparatus comprising: a first transceiver including a first transmitter transmitting data to the first network and a first receiver receiving data from the first network; a second transceiver including a second transmitter transmitting data to the second network and a second receiver receiving data from the second network; a control portion provided in between the first transceiver and the second transceiver to control a data relay process,
the control portion having an operation mode including a usual mode and a sleep mode, the sleep mode stopping the data relay process to suppress electricity consumption, the usual mode enabling the data relay process,the control portion under the sleep mode being to switch into the usual mode based on reception of a predetermined activation signal from at least one of the first network or the second network; a first connection line connecting an output line of the first receiver to an input line of the second transmitter; and a first switch portion inserted in the first connection line to permit electrical conduction of the first connection line when the control portion is under the sleep mode, wherein when the control portion is under the sleep mode, an activation signal from the first network is routed to the second network via the first receiver, the first connection line, and the second transmitter.