Sensor system having a plurality of coupled sensors

摘要

In a sensor system including a plurality of photoelectric sensor units, a light projecting period arbitrarily determined in each type is provided and mutual interference is prevented between identical types. The sensor system includes the plurality of sensor units coupled by a connector unit while a signal can be transmitted. Each of the sensor units retains type information thereof, and sets a unique identification number by transmitting the signal to each other. Each sensor unit operates after a delay time determined according to the identification number thereof elapses with a synchronous signal as a starting point. The synchronous signal is transmitted with a predetermined period from the sensor unit having a specific identification number in the plurality of sensor units. The delay time of each sensor unit is determined such that an operating period is matched with a predetermined period determined in each piece of the type information.

主权项

1. A sensor system comprising:
a plurality of sensors coupled by a connector such that a signal is transmitted, wherein each sensor of the plurality of sensors includes information identifying itself as one of a first type or second type, and sets a unique identification number by transmitting the signal to each other, wherein each sensor of the plurality of sensors operates after a delay time determined according to the identification number thereof elapses with a synchronous signal as a starting point, the synchronous signal being transmitted with a predetermined period from the sensor having a specific identification number in the plurality of sensors, and wherein the delay time of each of the sensors is determined such that each sensor of the same type has the same operating period, and such that the delay time among sensors of the same type is different.