Automatic event recognition to trigger recording changes
Filing Information
- Patent Number: US5916300
- Application Number: US8896929
- Filing date: 07/18/1997
- Issue date: 06/29/1999
- Predicted expiration date: 07/18/2017
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analyzing 100 million+ documents to uncover your network...- U.S. Classifications: 701/213 · /731.78R ·
- International Classifications: G06G 778 ·
- International Classifications: 701213;216;35 ·
Abstract
A method and apparatus for automatic event detection and processing is provided. A positioning system receiver includes a position measurement device and a logging device. The position measurement device is configured to receive and process signals from a positioning system. The logging device is coupled to the position measurement device for recording data received from the position measurement device. The logging device records the data at a current logging rate. The positioning system receiver detects an event via an external sensor or with reference to satellite data, for example. In response to the event, the logging device automatically modifies data logging processing such as the current logging rate. Additionally, to allow a post processing system to go backwards in time relative to the event, the current logging rate may be increased for a predetermined amount of time preceding the occurrence of the event. According to another aspect of the invention, the data logging processing of a survey system, such as a real-time kinematic (RTK) system including a base reference station and a roving unit, may be altered based upon an event. Positioning system data is received. A first subset of the positioning system data is recorded prior to the event being detected. The first subset of positioning system data may include real-time roving unit position solutions. If the event has been detected, a second subset of the positioning system data is recorded. The second subset of the positioning system data may include data used for post processing.References Cited
U.S. Patent Documents
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Other Publications
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Referenced By
| Document Number | Assignee | Inventors | Issue/Pub Date |
|---|---|---|---|
| US7120685 | International Business Machines Corporation | Lorin Evan Ullmann et al. | Oct 2006 |
| US6115655 | Keith; W. Curtis et al. | Sep 2000 | |
| US7640105 | Certus View Technologies, LLC | Steven Nielsen et al. | Dec 2009 |
| US6252544 | Steven M. Hoffberg | Jun 2001 | |
| US7487148 | Eaton Corporation | Frederick Earl James | Feb 2009 |
| US6469653 | Uniden America Corporation | James Rountree Haynes | Oct 2002 |
| US6421080 | Image Vault LLC | Tim A. Lambert | Jul 2002 |
| US7362239 | Persen Technologies Incorporated | Frank M. Franczyk et al. | Apr 2008 |
| USD571236 | Trimble Navigation Limited | John F. Cameron | Jun 2008 |
| US6618670 | SIRF Technology, Inc. | Mangesh M. Chansarkar | Sep 2003 |
| US7110762 | Trimble Navigation Limited | John F. Cameron et al. | Sep 2006 |
Patent Family
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Independent Claims | See all claims (26)
- 1. A positioning system receiver for use in a post processed survey environment, comprising:a position measurement device configured to receive and process signals from a positioning system; anda logging device coupled to the position measurement device for recording position measurement data received from the position measurement device, the logging device recording position measurement data at a current logging rate, the logging device configured to automatically modify the current logging rate in response to an occurrence of a predetermined event.
- 7. A method of producing a data file containing positioning system data representing different data logging rates, the method comprising the steps of:receiving positioning system data;logging the positioning system data at a first data logging rate to a data file; andautomatically changing the first data logging rate to a second data logging rate for a predetermined amount of time preceding and subsequent to an occurrence of a predetermined event.
- 12. A data logging device for use with a positioning system receiver, the data logging device comprising:a processor;a storage coupled to the processor for storing data received from a positioning system; anda memory coupled to the processor, the memory having stored therein sequences of instructions which when executed by the processor, cause the processor to perform the steps ofreceiving the data,logging the data to a storage device at a first logging rate, andautomatically switching to a second logging rate upon detecting a predetermined event.
- 18. A recording apparatus for use with a positioning system receiver, the apparatus comprising:a processor;a storage coupled to the processor for storing data received from a positioning system; anda memory coupled to the processor, the memory having stored therein sequences of instructions which when executed by the processor, cause the processor to perform the steps ofreceiving the data,logging a first subset of the data to a storage device if a predetermined event has not been detected; andlogging a second subset of the data to the storage device if the predetermined event has been detected.
- 20. In a surveying system, a method of data logging, the method comprising the steps of:receiving positioning system data;recording a first subset of the positioning system data prior to a predetermined event being detected; andrecording a second subset of the positioning system data if the predetermined event has been detected.
