Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Patent
1997-07-18
1999-06-29
Louis-Jacques, Jacques H.
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
73178R, 342357, G06G 778
Patent
active
059163003
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:
patent: 5267098 (1993-11-01), Lokhoff
patent: 5739785 (1998-04-01), Allison et al.
patent: 5825283 (1998-10-01), Camhi
patent: 5841026 (1998-11-01), Kirk et al.
"Z-Surveyor,Integrated, dual frequency, compact GPS receiver for high-accuracy post-pocessed and real-time surveying", Ashtech, Apr. 1997.
"Ashtech Z-12 GPS Receiver, Full GPS Capablity with Anti-Spoofing Turned On", Astech, Apr. 1996.
"Z-12 GPS Sensor, 5H Position Updates, 100 ms Latency, & Centimeter Accuracy". Ashtech, Jun. 1996.
"Seismark, Seismic Surveying with Ashtech Real- time Z and Super C/A Technology", Ashtech, Jun. 1996.
Allison Michael Timo
Kirk Geoffrey R.
Skoog Paul
Viney Ian Timothy
Louis-Jacques Jacques H.
Trimble Navigation Limited
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