Abstract:
This disclosure pertains to weighing a physical item while it is moving in a servo-driven conveyor system for e-commerce, logistics, manufacturing and other applications. The introduction of an unknown mass to an electro-mechanical feedback or filter network controlling a conveyance system will modify the steady state behavior of that system in such a way that measuring the phase or frequency shift of an input signal or oscillation will enable us to infer the magnitude of that mass.
Abstract:
A system (10) and method for weighing of items such as mailpieces (MP) in the presence of external vibration such as ground noise. The system (10) includes a scale system (12) having a platform (22) connected to a load cell (20), which provides an output signal to an analog-to-digital converter (24). The resulting digital output signal is processed by a low pass filter (28) and analyzed by a microprocessor (30) to determine weights of items (MP) on the platform (22). The microprocessor (30) also determines postage amounts as functions of the weights and outputs these postage amounts to a postage meter (16). The system also includes an accelerometer (32) and a limit detector (34) for generating a no go signal if external vibrations exceed a predetermined limit. The microprocessor (30) accepts a weight as valid if the external vibrations do not exceed the limit at any time while the weight is being determined and otherwise initiates an alternative weight determining method.
Abstract:
A method of processing a plurality of mail items in an automated system without isolating each mail item on a scale. The method includes creation of a mail item record that identifies the item and includes the weight. Mail items may be weighed by determining a first scale weight reading, introducing a mail item onto the scale, determining the mail item weight at one or more times within a time window, and finding the difference between each consecutive scale weight. Differences between scale weight readings not equal to zero are outputted. All outputted scale weight readings are totaled to obtain the mail item weight. Further disclosed are a mail processing system and a method of ceasing mail processing when invalid weights are detected.
Abstract:
A system and method for printing a postage meter stamp, including a desired postage amount and encrypted information, onto a piece of mail. A user takes a postal storage device to the post office in order to obtain a replenishment of the amount of postage stored within the postage storage device. A desired amount of postage is entered into the storage device by a postal employee through a processor-based system. The user is then able to access this stored postage at the user's location through a complementary processor-based system. The user's processor-based system automatically calculates the required postage for a piece of mail based upon a set of parameters pertaining to that piece of mail. Additional information, such as addresses, may also be printed onto an envelope, a label, a card, a letter, etc., along with the postage meter stamp through the use of a word processor program coupled to the present invention.
Abstract:
A method and apparatus for dimensioning and, optionally, weighing an object. A platform with a surface is used for supporting an object. A user selects between two different dimensioning devices of the apparatus. The first device employs three distance sensors to determine a distance between each of the distance sensors and a side of an object. The second device includes a movable gate which is passed over and about an object or objects on the platform. Sensor arrays, such as paired, aligned light emitter and receiver arrays, are used in combination with a plurality of sensed gate positions to determine the dimensions of the object(s)as the gate passes around the object(s) based on whether or not light from an emitter on one side of the gate reaches a light receiver on another, opposing side of the gate.
Abstract:
By means of a procedure for the weighing of letters and of a letter balance, both small and large letters of varying weight are conveyed on a conveyor belt towards two rollers turning against each other so that the velocity of the letters on the conveyor belt is different from the velocity of the rollers. By means of measuring the letters' velocity before and after they reach the rollers and by means of measuring the rollers' velocity before and after the letters come in contact with the rollers, as well as by measuring the power provided to the rollers, it is possible to determine, with great accuracy, the weight of individual letters moving at high velocity, which is a significant advantage when checking as to whether the letters are insufficiently stamped, given that the accuracy also ensures that correctly stamped letters are not identified as being insufficiently stamped.
Abstract:
A system and method for weighing of items such as mailpieces in the presence of external vibration such as ground noise. The system includes a scale system having a platform connected to a load cell, which provides an output signal to an analog-to-digital converter. The resulting digital output signal is processed by a low pass filter and analyzed by a microprocessor to determine weights of items on the platform. The microprocessor also determines postage amounts as functions of the weights and outputs these postage amounts to a postage meter. The microprocessor determines the weights as the median of the peak to valley difference of the digital output signal when the digital output signal peak to valley difference is less than a predetermined value. The microprocessor identifies peaks and valleys of the digital output signal by determining when the derivative of the signal changes sign. The microprocessor estimates the weight as an average of a sum of medians for N preceding cycles if the digital output signal does not converge.
Abstract:
An electronic scale cartridge plugs into a piece of office equipment, such as a PC (31) or a peripheral device (21, 41, 51), or a portable electronic device (130), such as PDA (140) or wireless communication device. The scale cartridge has a connector (14) which fits a universal or standard port. Postage for an item weighed by the scale cartridge is computed by a program stored in the PC or portable device, which preferably has one or more interactive display screens (600, 610, 620, 630, 640) in a Windows format to step the user through the process, based on a weight signal received from the scale cartridge. A second embodiment allows attachment to piece of office equipment by a variety of fasteners (152, 123, 500, 506, 510, 515, 520) which establishes a removable or rotatable connection. A third embodiment includes a docking station (610) which has a surface (640) for supporting the office equipment.
Abstract:
A system and method for printing postage indicia, including a desired postage amount, onto a piece of mail. A user takes a postal dispensing device to, or establishes information communication with, an authorized agent of a postal authority in order to obtain a replenishment of the amount of postage stored within the portable postage dispensing device. A desired amount of postage is entered into the dispensing device by an authorized agent through a host processor-based system. The user is then able to access this stored postage at the user's location through a network of processor-based systems. By using the network of processor-based systems the user is able to couple the portable dispensing device to a first processor-based system and then allow distribution of postage amounts to multiple ones of the networked processor-based systems. These ones of the networked processor-based systems may then print an authorized postage indicia on a postal item.
Abstract:
A method and apparatus for dimensioning and, optionally, weighing an object. A platform with a surface is used for supporting an object. A user selects between two different dimensioning devices of the apparatus. The first device employs three distance sensors to determine a distance between each of the distance sensors and a side of an object. The second device includes a movable gate which is passed over and about an object or objects on the platform. Sensor arrays, such as paired, aligned light emitter and receiver arrays, are used in combination with a plurality of sensed gate positions to determine the dimensions of the object(s)as the gate passes around the object(s) based on whether or not light from an emitter on one side of the gate reaches a light receiver on another, opposing side of the gate.