WO2005023683B1 - Method and apparatus for tracking a load on a conveyor system - Google Patents

Method and apparatus for tracking a load on a conveyor system

Info

Publication number
WO2005023683B1
WO2005023683B1 PCT/US2004/024422 US2004024422W WO2005023683B1 WO 2005023683 B1 WO2005023683 B1 WO 2005023683B1 US 2004024422 W US2004024422 W US 2004024422W WO 2005023683 B1 WO2005023683 B1 WO 2005023683B1
Authority
WO
WIPO (PCT)
Prior art keywords
load
sensor
conveyor
sensing
conveyor segment
Prior art date
Application number
PCT/US2004/024422
Other languages
French (fr)
Other versions
WO2005023683A8 (en
WO2005023683A3 (en
WO2005023683A2 (en
Filing date
Publication date
Priority claimed from US10/652,576 external-priority patent/US7263409B2/en
Priority to NZ545201A priority Critical patent/NZ545201A/en
Priority to AU2004270645A priority patent/AU2004270645B2/en
Priority to CA2536525A priority patent/CA2536525C/en
Priority to BRPI0413226-2A priority patent/BRPI0413226A/en
Priority to DE602004023097T priority patent/DE602004023097D1/en
Application filed filed Critical
Priority to JP2006524665A priority patent/JP2007504068A/en
Priority to EP04779469A priority patent/EP1658557B1/en
Publication of WO2005023683A2 publication Critical patent/WO2005023683A2/en
Publication of WO2005023683A8 publication Critical patent/WO2005023683A8/en
Publication of WO2005023683A3 publication Critical patent/WO2005023683A3/en
Publication of WO2005023683B1 publication Critical patent/WO2005023683B1/en
Priority to HK06112510.0A priority patent/HK1091919A1/en

Links

Abstract

A method and apparatus for tracking a load on a conveyor system using the trailing edge of the load. The method includes the steps of sensing the trailing edge of the load with a first sensor and updating a load record for the load in response to sensing the trailing edge of the load with the first sensor. The apparatus may include a conveyor, a controller, and a sensor in communication with the controller for sensing the trailing edge of a load on the conveyor.

Claims

AMENDED CLAIMS
[Received by the International Bureau on 23 November 2005 (23.11.05)]
1. A method of tracking a load having a trailing edge and a leading edge, the load being conveyed on a conveyor system having a first sensor, said method comprising the steps of: sensing the trailing edge of the load with the first sensor; and updating a load record for the load only in response to sensing the trailing edge of the load with the first sensor.
2. The method of claim 1 wherein said conveyor system includes a first conveyor segment and a second conveyor segment arranged relative to the first conveyor segment to transfer the load from the first conveyor segment to the second conveyor segment and wherein said conveyor system further includes a first data array associated with the first conveyor segment and a second data array associated with the second conveyor segment and wherein said step of updating the load record further includes the step of transferring the load record from the first data array to the second data array upon sensing the trailing edge of the load with the first sensor.
3. The method of claim 2 wherein said conveyor system further includes a source sensor and wherein said method further includes the step of generating a load record upon sensing the load with the source sensor before said step of updating the load record.
4. The method of claim 3 wherein said step of generating a load record upon sensing a load with the source sensor further includes the steps of: sensing the trailing edge of the load with the source sensor; and inputting the load record into the first data array. 19
10. A method of tracking a load on a conveyor system and of controlling the conveyor system wherein the load includes a trailing edge and a leading edge and wherein the conveyor system includes a first conveyor segment and a source load sensor associated with the first conveyor segment, the load sensor being in communication with a controller, said method comprising the steps of: sensing the trailing edge of the load with the source load sensor; updating a load record in the controller only in response to sensing the trailing edge of the load; generating a pulse signal having a number of pulses directly proportional to the travel of the load on the first conveyor segment; and tracking the load on the first conveyor segment using the generated pulse signal and load record updated in response to sensing the trailing edge of the load.
11. The method of claim 10 further including the steps of: sensing the leading edge of the load; and controlling the operation of the individual conveyor segments using the leading edge of the load.
12. The method of claim 10 wherein said conveyor system includes a second conveyor segment and a first sensor associated with the first conveyor segment and wherein said step of updating a load record in the controller further includes the step of updating a distance field comprising the distance between the trailing edge of the load and the first sensor upon sensing the trailing edge of the load with the source sensor.
13. The method of claim 12 further including the step of reducing the distance field in response to each generated pulse. 20
14. The method of claim 11 wherein the conveyor system further includes a first sensor associated with the first conveyor segment, and a second conveyor segment, said method further comprising the steps of: sensing the trailing edge of the load by the first sensor; and updating a first data array associated with a first conveyor segment upon sensing the trailing edge.
15. The method of claim 12 further including the steps of: sensing the leading edge of the load by the first sensor; controlling the movement of the load on the first and second conveyor segments upon sensing the leading edge.
16. The method of claim 14 wherein said step of updating a first data array associated with the first conveyor segment further includes the step of transferring a load record in the first data array to a second data array associated with the second conveyor segment.
17. A conveyor system for tracking a load having a leading edge and a trailing edge, said system comprising: a first conveyor segment; a second conveyor segment arranged relative to said first conveyor segment to transfer the load from said first conveyor segment to said second conveyor segment; a first sensor operatively associated with said first conveyor segment, said first sensor being configured to sense the trailing edge of the load; a controller communicating with said first sensor, said controller configured to transfer load records from a first data array associated with said first conveyor segment to a second data array associated with said second conveyor segment only in response to said first sensor sensing the trailing edge of the load.
PCT/US2004/024422 2003-08-29 2004-07-29 Method and apparatus for tracking a load on a conveyor system WO2005023683A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP04779469A EP1658557B1 (en) 2003-08-29 2004-07-29 Method and apparatus for tracking a load on a conveyor system
AU2004270645A AU2004270645B2 (en) 2003-08-29 2004-07-29 Method and apparatus for tracking a load on a conveyor system
CA2536525A CA2536525C (en) 2003-08-29 2004-07-29 Method and apparatus for tracking a load on a conveyor system
BRPI0413226-2A BRPI0413226A (en) 2003-08-29 2004-07-29 method and apparatus for tracking a cargo in a transport system
DE602004023097T DE602004023097D1 (en) 2003-08-29 2004-07-29 METHOD AND DEVICE FOR FOLLOWING A LOAD ON A CONVEYOR SYSTEM
NZ545201A NZ545201A (en) 2003-08-29 2004-07-29 Method and apparatus for tracking a load on a conveyor system
JP2006524665A JP2007504068A (en) 2003-08-29 2004-07-29 Method for tracking load on conveyor system and conveyor device
HK06112510.0A HK1091919A1 (en) 2003-08-29 2006-11-14 Method and apparatus for tracking a load on a conveyor system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/652,576 US7263409B2 (en) 2003-08-29 2003-08-29 Method and apparatus for tracking a load on a conveyor system
US10/652,576 2003-08-29

Publications (4)

Publication Number Publication Date
WO2005023683A2 WO2005023683A2 (en) 2005-03-17
WO2005023683A8 WO2005023683A8 (en) 2005-05-26
WO2005023683A3 WO2005023683A3 (en) 2005-11-10
WO2005023683B1 true WO2005023683B1 (en) 2006-01-12

Family

ID=34217682

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/024422 WO2005023683A2 (en) 2003-08-29 2004-07-29 Method and apparatus for tracking a load on a conveyor system

Country Status (14)

Country Link
US (1) US7263409B2 (en)
EP (1) EP1658557B1 (en)
JP (1) JP2007504068A (en)
KR (1) KR20070011226A (en)
CN (1) CN100495317C (en)
AR (1) AR045287A1 (en)
AU (1) AU2004270645B2 (en)
BR (1) BRPI0413226A (en)
CA (1) CA2536525C (en)
DE (1) DE602004023097D1 (en)
ES (1) ES2330526T3 (en)
HK (1) HK1091919A1 (en)
NZ (1) NZ545201A (en)
WO (1) WO2005023683A2 (en)

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