Tunnel convergence detection apparatus and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 17, 2018
Issued Date -
N/A
app pub date -
Mar 28, 2017
filing date -
Mar 29, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided are methods and products for rapid, reliable, and accurate monitoring and detecting of convergence in mining and civil engineering applications. A sensor, such as a scanning laser device, is moved through a tunnel, either automatically, autonomously, or with manual guidance. The sensor is configured to acquire 3D point clouds of all or a portion of a tunnel, at selected times. The 3D point cloud data is used to compute a set of indicators, which are local descriptors of the environment along the tunnel. The indicators are then amalgamated to estimate the probability that convergence has occurred in a given region. In one embodiment, the indicators are fused together using a Bayes network.
First Claim
Other Claims data not available
Family
International Classification(s)
- E21D:SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAM....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- B60R:VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT ....
- G01C:MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING....
- G01S:RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMI....
- G01B:MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIME....
- 2017 Application Filing Year
- E21D Class
- 89 Applications Filed
- 66 Patents Issued To-Date
- 74.16 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E21D Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 17, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 17, 2029 |
