Communication system

A communication system, comprising:

• one or more sensor devices including a plurality of sensor elements each of which detects a sensor value of a physical quantity regarding a same detection target;
• and
• one or more microcomputers including:
• one or more reception units each of which is disposed corresponding to a respective one of the one or more sensor devices, each of the one or more reception units being configured to receive a signal including the sensor value transmitted from a corresponding one of the plurality of sensor elements of the one or more sensor devices;
• a physical quantity computing unit that is configured to calculate the physical quantity based on the sensor values;
• and
• a control amount computing unit that is configured to calculate a predetermined control amount based on the calculated physical quantity, wherein
• each of the one or more reception units includes:
• a plurality of signal acquisition units each of which is connected to a respective one of the sensor elements of the sensor devices via a respective one of a plurality of communication channels, each of the signal acquisition units being configured to acquire the sensor value transmitted via the corresponding communication channel when the corresponding communication channel is in a transmittable state;
• and
• one transmission trigger signal generation unit that is configured to generate a common transmission trigger signal for simultaneously putting the communication channels in the transmittable state, and
• the plurality of signal acquisition units in each of the one or more reception units are configured to simultaneously acquire the sensor values by the common transmission trigger signal.