Patent ID: 11885868
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC B  G | IPC G

Claim 15:
16. A method of monitoring a pallet system having a plurality of pallets having pallet beds for moving material thereon into a material processing system comprising:
placing a housing of the pallet system adjacent to a processing system to form an interface through which the one or more pallets move on respective stacked rails, which are attached to the housing, the housing including a horizontally extending opening in which the pallet beds are selectively exposed therethrough as they move into and out of the processing system;
providing a first emitter;
providing a first detector;
projecting a first beam from said first emitter to said first detector, wherein said first beam extends above the opening and in a direction that is parallel to the movement of the pallets;
determining whether said first projected beam has been interrupted by the object;
providing a second emitter inside said housing;
providing a second detector inside said housing;
projecting a second beam between a pair of the plurality of pallets to detect the presence of an object between said pair of pallets; and
determining whether said second projected beam has been interrupted by the object between said pair of pallets.