System and method for product identification
First Claim
1. A system for asynchronously identifying an item within a sensing volume comprises:
- a plurality of object sensors, each object sensor configured and arranged to determine at least one parameter describing objects as they are relatively moved with respect to the sensing volume, and having a known position and attitude with respect to the sensing volume;
a position sensor, configured and arranged to produce position information relating to the relative movement, wherein the position information does not comprise system clock information;
a pair of area dimensioning sensors, each area dimensioning sensor configured and arranged to determine an instantaneous width of the object as the object relatively moves past a substantially planar field of view of each respective area dimensioning sensor, wherein one of the area dimensioning sensors comprises a bright field imaging sensor and the other of the area dimensioning sensors comprises a dark field imaging sensor and the processor determines the instantaneous width based on an output of one or both of the area imaging sensors; and
a processor, configured and arranged to receive the parameters from the object sensors and to associate the parameters with respective ones of the objects on the basis of the position information and on the basis of the known position and attitude of the object sensor that determined each respective parameter, without taking into account system clock information, and to, for each object having at least one associated parameter, compare the at least one associated parameter to known item parameters to assign an item identification to the object.
1 Assignment
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Accused Products
Abstract
A system and method for identifying an object includes a plurality of object sensors, each object sensor configured and arranged to determine at least one parameter describing objects as they are relatively moved with respect to a sensing volume and having a known position and attitude with respect to the sensing volume. A location sensor is configured and arranged to produce position information relating to the relative movement. Outputs from the object and location sensors are passed to a processor and the parameters are associated with respective ones of the objects on the basis of the position information and on the basis of the known positions and attitudes of the sensors. For each object having associated parameters, the processor compares the parameters to known item parameters to assign item identification to the object.
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Citations
12 Claims
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1. A system for asynchronously identifying an item within a sensing volume comprises:
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a plurality of object sensors, each object sensor configured and arranged to determine at least one parameter describing objects as they are relatively moved with respect to the sensing volume, and having a known position and attitude with respect to the sensing volume; a position sensor, configured and arranged to produce position information relating to the relative movement, wherein the position information does not comprise system clock information; a pair of area dimensioning sensors, each area dimensioning sensor configured and arranged to determine an instantaneous width of the object as the object relatively moves past a substantially planar field of view of each respective area dimensioning sensor, wherein one of the area dimensioning sensors comprises a bright field imaging sensor and the other of the area dimensioning sensors comprises a dark field imaging sensor and the processor determines the instantaneous width based on an output of one or both of the area imaging sensors; and a processor, configured and arranged to receive the parameters from the object sensors and to associate the parameters with respective ones of the objects on the basis of the position information and on the basis of the known position and attitude of the object sensor that determined each respective parameter, without taking into account system clock information, and to, for each object having at least one associated parameter, compare the at least one associated parameter to known item parameters to assign an item identification to the object. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of asynchronously identifying an item within a sensing volume comprises:
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determining at least one parameter describing objects as they are relatively moved with respect to the sensing volume, using a plurality of object sensors, each having a known position and attitude with respect to the sensing volume; determining an instantaneous width of the object as the object relatively moves past a substantially planar field of view of each of a pair of area dimensioning sensors, wherein one of the area dimensioning sensors comprises a bright field imaging sensor and the other of the area dimensioning sensors comprises a dark field imaging sensor, based on an output of one or both of the area imaging sensors; producing position information relating to the relative movement, wherein the position information does not comprise system clock information; and associating the parameters with respective ones of the objects on the basis of the position information and on the basis of the known position and attitude of the object sensor that determined each respective parameter, without taking into account system clock information, and to, for each object having at least one associated parameter, compare the at least one associated parameter to known item parameters to assign an item identification to the object. - View Dependent Claims (9, 10, 11, 12)
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Specification