Automatic event recognition to trigger recording changes
First Claim
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; and
a 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.
3 Assignments
0 Petitions
Accused Products
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.
-
Citations
26 Claims
-
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; and a 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. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
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; and automatically 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. - View Dependent Claims (8, 9, 10, 11)
-
-
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; and a 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 of receiving the data, logging the data to a storage device at a first logging rate, and automatically switching to a second logging rate upon detecting a predetermined event. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
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; and a 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 of receiving the data, logging a first subset of the data to a storage device if a predetermined event has not been detected; and logging a second subset of the data to the storage device if the predetermined event has been detected. - View Dependent Claims (19)
-
-
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; and recording a second subset of the positioning system data if the predetermined event has been detected. - View Dependent Claims (21, 22, 23, 24, 25, 26)
-
Specification