Digi-track digital roadway and railway analyzer

• US 5,721,685 A
• Filed: 06/29/1995
• Issued: 02/24/1998
• Est. Priority Date: 06/29/1995
• Status: Expired due to Fees

• Current Assignee: Robert E. Holland, Roy T. Flowers Jr, Terry S. Brown
• Original Assignee: Robert E. Holland, Roy T. Flowers Jr, Terry S. Brown
• Inventors: Holland, Robert E., Flowers, Roy T. Jr., Brown, Terry S.
• Primary Examiner(s): NGUYEN, TAN QUANG
• Application Number:
  US08/496,541
• Time in Patent Office: 971 Days
• Field of Search: 364/449.1, 364/450, 364/550, 364/560, 364/561, 364/424.07, 364/449.7, 364/449.9, 364/453, 364/557, 364/436, 340/990, 340/995, 340/937, 342/357, 342/451, 404/84.1, 404/93, 404/84.2, 404/84.05, 404/84.5, 404/96
• US Class Current: 701/207
• CPC Class Codes: E01B 35/02 for spacing, for cross levelling; for laying-out curves
• CPC Class Codes: E01C 19/006 by laser or ultrasound
• CPC Class Codes: E01C 23/01 Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports form rails E01C19/50; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs E01C23/07 takes precedence; measuring roughness or irregularity in general G01B

Abstract

A horizontal position and vertical elevation measurement apparatus and method for measuring horizontal positioning and absolute elevations of railways, paved or unpaved roadways, and other travel surfaces. The apparatus is capable of determining longitudinal and transverse elevational profiles in an X-Y-Z coordinate format usable with Geographical Information Systems (GIS) and Land Information Systems (LIS) to project present and future traffic counts and traffic flow patterns. It can measure the horizontal location and elevations of paved and unpaved travel surfaces, potholes, cracks, wheel ruts, etc. within a travel surface, and the horizontal location and elevations of railway tracks when conventional railroad high rail gear is used. The apparatus has Global Positioning System (GPS) signal receiving units fixed to each end of a sensor bar mounted on a vehicle perpendicular to vehicle movement. Depending upon the type of surface is being located, the sensor bar has a combination of non-mechanical sonic or infrared distance sensors placed across the sensor bar between the GPS signal receiving units which gather vertical elevation information. Concurrent with collection of information from the GPS units and the distance sensors, a video camera projects downward at the travel surface and provides a visual reference of the surface conditions should collected data exceed preset ranges. Measurement intervals are user defined. Raw digital data is stored in an onboard computer system. The data is later transferred to a remote computer for post processing, analysis and generation of the final formatted electronic file by proprietary and copyrighted software.

Claims

1. A roadway and railway analyzer comprising, a vehicle capable of moving through a predetermined distance;

a sensor bar attached to said vehicle in a position perpendicular to the intended direction of movement of said vehicle, said sensor bar having opposite ends;

a pair of Global Positioning System (GPS) signal receiving units, each of said GPS signal receiving units attached to one of said opposite ends of said sensor bar;

a plurality of non-mechanical distance sensors attached to said sensor bar between said GPS signal receiving units, each of said distance sensors mounted on said sensor bar perpendicular to the surface on which said vehicle will travel during data collection;

a distance measuring device for measuring the distance traveled by said vehicle during data collection, said distance measuring device being attached to said vehicle and in contact with the surface upon which said vehicle will travel during data collection;

data collection and storage means to which each of said GPS signal receiving units, each of said distance sensors, and said distance measuring device is electrically connected;

means to analyze data and compute therefrom the horizontal locations and vertical elevations of roadways and railways, and translate such location and elevation information into formats usable with Geographical Information Systems (GIS) and Land Information Systems (LIS);

means to electrically connect each of said GPS signal receiving units, each of said distance sensors, and said distance measuring device to said data collection and storage means;

means to attach each of said GPS signal receiving units and each of said distance sensors to said sensor bar; and

means to attach said distance measuring device to said vehicle.

2. The roadway and railway analyzer of claim 1 further comprising means for collection of video information attached to said vehicle.

3. The roadway and railway analyzer of claim 1 further comprising conventional railroad high rail gear attached to said vehicle and means to attach said conventional railroad high rail gear to said vehicle so as to allow analysis of railways wherein said plurality of non-mechanical distance sensors comprises four of said non-mechanical distance sensors with two of said non-mechanical distance sensors attached to said sensor bar so that one of said non-mechanical distance sensors is positioned to record vertical information over each railway track and wherein the other two of said non-mechanical distance sensors are attached to said sensor bar so that each non-mechanical distance sensor is positioned perpendicular to one of railway tracks to record horizontal information on each railway track.

4. The roadway and railway analyzer of claim 1 wherein said data collection and storage means to which each of said GPS signal receiving units, each of said distance sensors and said distance measuring device is connected comprises an on-board computer means located on-board said vehicle.

5. The roadway and railway analyzer of claim 1 wherein said means to analyze data and compute therefrom horizontal locations and vertical elevations of roadways and railways comprises a computer means capable of determining longitudinal and transverse elevational profiles in an X, Y, Z, format.

7. The roadway and railway analyzer of claim 1 wherein said means to connect each of said GPS signal receiving units, each of said distance sensors and said distance measuring device comprises a wiring harness.

8. The roadway and railway analyzer of claim 1 wherein said vehicle has a rear portion and further comprising a paint nozzle assembly attached to said rear portion, a quantity of paint housed within said paint nozzle assembly, means to connect said point nozzle assembly to said means for collection and storage of data so that said means for collection and storage of data may automatically trigger said paint nozzle assembly to spray portions of said quantity of paint onto said roadway and said railway in response to collected data exceeding preset minimum and maximum limits.

9. The roadway and railway analyzer of claim 1 further comprising a visual sight reference attached to said vehicle and means to attach said visual sight reference to said vehicle so as to allow an operator of said vehicle to be guided along said roadway or said railway during data collection.

6. The roadway and railway analyzer of 1 claim further comprising an interrupt button connected to said means for data collection and storage so as to allow collection of data only from roadways or railway and not from obstructions located upon said roadways and said railways.

10. A roadway and railway analyzer comprising, a vehicle capable of moving through a predetermined distance;

a sensor bar attached to said vehicle in a position perpendicular to intended direction of movement of said vehicle, said sensor bar having opposite ends;

a pair of Global Positioning System (GPS) signal receiving units, each of said GPS signal receiving units attached to one of said opposite ends of said sensor bar;

a plurality of non-mechanical distance sensors attached to said sensor bar between said GPS signal receiving units, each of said distance sensors mounted on said sensor bar perpendicular to said travel surface;

a distance measuring device capable of measuring the distance traveled by said vehicle during data collection, said distance measuring device being attached to said vehicle and in contact with the surface upon which said vehicle will travel during data collection;

on-board computer means located on-board said vehicle for collection and storage of data collected by each of said GPS signal receiving units, each of said distance sensors, and said distance measuring device;

additional computer means for analysis of collected data and for computing therefrom horizontal locations and vertical elevations of roadways and railways, and for translation of location and elevation information into formats usable with Geographical Information Systems (GIS) and Land Information Systems (LIS), said computer means being capable of determining longitudinal and transverse elevational profiles in an X, Y, Z coordinate format;

said roadway and railway analyzer further comprising a wiring harness for electrically connecting each of said GPS signal receiving units, each of said distance sensors, and said distance measuring device to said on-board computer means;

means to attach each of said GPS signal receiving units and each of said distance sensors to said sensor bar; and

means to attach said distance measuring device to said vehicle.

11. The roadway and railway analyzer of claim 10 further comprising conventional railroad high rail gear attached to said vehicle and means to attach said conventional railroad high rail gear to said vehicle so as to allow analysis of railways, wherein said plurality of non-mechanical distance sensors comprises four of said non-mechanical distance sensors with two of said non-mechanical distance sensors attached to said sensor bar so that one of said non-mechanical distance sensors is positioned to record vertical information over each railway track and wherein the other two of said non-mechanical distance sensors are attached to said sensor bar so that each non-mechanical distance sensor is positioned perpendicular to one of railway tracks to record horizontal information on each railway track.

12. The roadway and railway analyzer of claim 10 further comprising an interrupt button connected to said on-board computer means so as to allow collection of data only from roadways or railways and not from obstructions located upon said roadways or said railways.

13. The roadway and railway analyzer of claim 10 wherein said vehicle has a rear portion and further comprising a paint nozzle assembly attached to said rear portion, a quantity of paint housed within said paint nozzle assembly, means to attach said paint nozzle assembly to said rear portion, and means to connect said paint nozzle assembly to said on-board computer so that said on-board computer may automatically trigger said paint nozzle assembly to spray portions of said quantity of paint onto said roadway and said railway in response to collected data exceeding preset minimum and maximum limits.

14. The roadway and railway analyzer of claim 10 further comprising a visual sight reference attached to said vehicle and means to attach said visual sight reference to said vehicle so as to allow an operator of said vehicle to be guided along said roadway or said railway during data collection.

15. A method for analyzing roadways and railways comprising the steps of, providing a vehicle, a plurality of Global Positioning System (GPS) signal receiving units, a plurality of non-mechanical distance sensors, a distance measuring device, means for collection and storage of data, means to analyze data, means to compute from collected data the horizontal locations and vertical elevations of roadways and railways, and means to translate collected data into formats usable with Geographical Information Systems (GIS) and Land Information Systems (LIS), as well as providing electrically connection means to electrically connect said means for collection and storage of data to each of said GPS signal receiving units, each of said distance sensors and said distance measuring device;

mounting each of said GPS signal receiving units, each of said distance sensors and said distance measuring device onto said vehicle;

using said electrical connection means to electrically connect each of said GPS signal receiving units, each of said distance sensors and said distance measuring device to said means for collection and storage of data;

initializing each of said GPS signal receiving units and each of said distance sensors prior to the start of data collection;

beginning to move said vehicle through a predetermined distance;

concurrent with the start of vehicle movement, initializing said means for collection and storage of data;

establishing a predefined interval for transmission of digital information from each of said GPS signal receiving units, each of said distance sensors, and said distance measuring device to said means for collection and storage of data;

transmitting digital information at predefined intervals from each of said GPS signal receiving units, each of said distance sensors and said distance measuring device to said means for collection and storage of data;

analyzing data and computing therefrom horizontal locations and vertical elevations of roadways and railways;

translating said horizontal locations and vertical elevations into formats usable with Geographical Information Systems (GIS) and Land Information Systems (LIS); and

comparing said formats with available Geographical Information Systems (GIS) and Land Information Systems (LIS) to project present and future traffic counts and traffic flow patterns.

16. The method of analyzing roadways and railways of claim 15 further comprising the steps of;

providing visual recording means; and

concurrent with the transmitting of digital information at predefined intervals from each of said GPS signal receiving units, each of said distance sensors and said distance measuring device to said means for collection and storage of data, recording visual information from the surface upon which said vehicle travels during data collection.

17. The method of analyzing roadways and railways of claim 15 further comprising the steps of providing conventional railroad high rail gear and gear attachment means for attaching said conventional railroad high rail gear to said vehicle;

and attaching said conventional railroad high rail gear to said vehicle with said gear attachment means to allow analysis of railways; and

wherein said providing of a plurality of non-mechanical distance sensors comprises providing four of said non-mechanical distance sensors with two of said non-mechanical distance sensors being attached to said sensor bar so that one of said non-mechanical distance sensors is positioned to record vertical information over each railway track, and wherein the other two of said non-mechanical distance sensors is attached to said sensor bar so that each non-mechanical distance sensor is positioned perpendicular to one of the railway tracks to record horizontal information thereon.

18. The method of analyzing roadways and railways of claim 15 further comprising the steps of providing a paint nozzle assembly, paint nozzle attachment means to attach said paint nozzle assembly to said vehicle, and electrical connection means to connect said paint nozzle assembly to said means for collection and storage of data;

attaching said paint nozzle assembly to the rear portion of said vehicle with said paint nozzle attachment means; and

electrically connecting said paint nozzle assembly to said means for collection and storage of data with said electrical connection means so that said means for collection and storage of data can automatically trigger said paint nozzle assembly to spray portions of paint onto said roadway or railway when collected data exceeds preset maximum and minimum values.

19. The method of analyzing roadways and railways of claim 18 further comprising the steps of providing an interrupt button and electrical connection means to connect said interrupt button to said means for collection and storage of data;

and connecting said interrupt button to said means for collection and storage of data with said electrical connection means so that said means for collection and storage of data can be manually interrupted by an operator when collected data exceeds preset maximum and minimum values.