Light curtain alignment using beam intensities

A component comprising:

• a light intensity receiver configured to receive a plurality of light intensity signals from a plurality of beam receivers of a receiver unit of a light curtain, the light curtain comprising:
• a transmitter unit comprising a plurality of beam transmitters arranged linearly on the transmitter unit, each beam transmitter configured to transmit a narrow beam of light;
• the receiver unit comprising the plurality of beam receivers arranged linearly, each beam receiver configured to receive light from a corresponding beam transmitter of the plurality of beam transmitters;
• and
• one or more vibration sensors;
• a light intensity transmitter configured to transmit from the light curtain a plurality of light intensity signals, each light intensity signal from one or more beam receivers;
• and
• a trip transmitter that transmits a trip signal in response to determining that a light intensity signal from a beam receiver of the plurality of beam receivers is below a trip threshold.

A method comprising:

• receiving a plurality of light intensity signals, each light intensity signal from one or more beam receivers of a plurality of beam receivers of a light curtain, the light curtain comprising:
• a transmitter unit comprising a plurality of beam transmitters arranged linearly on the transmitter unit, each beam transmitter configured to transmit a narrow beam of light;
• and
• a receiver unit comprising the plurality of beam receivers arranged linearly, each beam receiver configured to receive light from a corresponding beam transmitter of the plurality of beam transmitters;
• transmitting from the light curtain the plurality of light intensity signals;
• and
• transmitting a trip signal in response to determining that a light intensity signal from a beam receiver of the plurality of beam receivers is below a trip threshold.