GPS/GLONASS travel recorder

• US 5,557,524 A
• Filed: 09/30/1993
• Issued: 09/17/1996
• Est. Priority Date: 10/18/1991
• Status: Expired due to Fees

• Current Assignee: Stanley C. Maki
• Original Assignee: Stanley C. Maki
• Inventors: Maki, Stanley C.
• Primary Examiner(s): ZANELLI, MICHAEL J
• Application Number:
  US08/130,013
• Time in Patent Office: 1,083 Days
• Field of Search: 364/449, 364/452, 364/467, 364/434, 364/562, 364/444, 364/424.04, 364/460, 364/406, 364/401, 342/357, 342/457, 340/995, 340/944, 395/161, 395/600
• US Class Current: 701/35
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01S 19/33 Multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS
• CPC Class Codes: G06Q 40/12 Accounting
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

A GPS/GLONASS travel recorder which utilizes the accurate position and velocity information determinable from radio frequency signals emanating from GPS and/or GLONASS satellites and ground stations to create an accurate route map by joining the frequent accurate position data points with user selectable or automatically selected route symbology. Features of the route locality are automatically printed on a displayed map of the travelled route from prior stored legends that are designated with approximate position location, or can be inserted by a user with keyboard or mouse entry. The computer processor of the GPS/GLONASS travel recorder calculates distance traveled by the carrier, time of travel, height, and other user chosen parameters that are programmed into the processor. Such data are stored for later retrieval as is the route map.

Claims

1. Carrier mounted apparatus for providing a precise real time trip record for a carrier by generating and displaying the trip record based on GPS/GLONASS receiver provided periodic precise position, velocity, and time data which comprises:

GPS/GLONASS signal receiving antenna system means;

a GPS/GLONASS signal processing receiver coupled to the antenna system means, for providing signals representative of the carrier'"'"'s precise latitude and longitude position, precise height above mean sea level, precise time, precise north, east and vertical velocity components;

data storage media;

computer means having a display and coupled to said data storage media and to the receiver for processing the GPS/GLONASS position and velocity representative signals in real time in accordance with algorithm process instructions stored in the data storage media to provide real time travel route plots for viewing on the computer display;

the data storage media also for storing previously obtained signals representative of approximate or precisely known latitude and longitude described local map features of interest to a user in a latitude-longitude associative memory for real-time retrieval and display;

the data storage media also storing symbology generating instructions, and a vector processing program;

the data storage media also for storing spread sheet instructions, to compute accumulated trip mileage and accumulated trip business tax deduction;

the data storage media also providing for real time storage of GPS/GLONASS carrier position and velocity representative signals, and data resulting from processing by said algorithm process instructions, for later retrieval and display, and

printer means coupled to the computer means for providing, upon request, a hard copy of the travel route plots, the accumulated trip mileage and accumulated trip business tax deduction spread sheet from said spread sheet program instructions.

2. The apparatus, as defined in claim 1, wherein said storage media additionally comprising a horizontal precise position plot program with operator designated or by default automatically designated route symbology, as the travel route occurs, for storage of said position plot program in the data storage media and for later retrieval therefrom wherein:

the computer means uses the GPS/GLONASS receiver provided latitude and longitude representative signals to define a line segment vector, the width and color of said line segment vector being designated by function keys assigned on a keyboard of the computer and in accordance with an x-y plotting program stored in the data storage media to generate a real time plot of such each designated line segment vector as it occurs on the travel route, and

the computer means also uses the x-y plotting program stored in the data storage media and as directed by actuatable functions keys on the keyboard for changing the scaling of the travel route display, and for shifting travel route display along the x and y axis.

3. The apparatus as defined in claim 2 wherein said data storage media further contains travel route vicinity locality names, street names, points of interest, and other pertinent data automatically displayed in response to the storage of signals associated by position to the carrier position in the storage media and wherein:

the storage media also contains stored local map features which are identified by their latitude-longitude locations in an associative memory of the storage media;

the computer means automatically requests from the associative memory those local map features which have stored latitude-longitude locations that are within the latitude-longitude limits of the current display boundaries of a travel plot, and

the computer means also imprints the acquired local map features from the storage media on the current display in a stored format at the stored latitude longitude location for that feature.

4. The apparatus as defined in claim 1 wherein said computer means also provides a precise height plot with route symbology as a function of travel route distance, as the travel route occurs, and for storage for later retrieval and wherein:

the GPS/GLONASS receiver also provides signals representative of the height above mean sea level, and point-to-point latitude and longitude of the carrier along the travel route to the computer means;

the computer means uses storage media data to compute the horizontal travel route distance of the carrier according to the stored algorithms;

the computer means plots on its display point-to-point height data as a function of horizontal travel route distance of the carrier at the coincident GPS/GLONASS receiver provided times by using the vector processing program in the storage media, and

the computer means uses the vector processing program in the storage media to plot on the display line vectors from point-to-point height data together with route symbology selected by function keys on the keyboard.

5. The apparatus as defined in claim 4 wherein said computer means and said stored data in said data storage means additionally provides travel route vicinity locality name, street names, points-of-interest, and other pertinent data on the basis of stored approximate position data;

the storage media also contains pre-stored local map features that are identified by their latitude-longitude location in an associative memory;

the computer means requests those local map features from said storage media which has stored latitude-longitude locations within the horizontal position display map field of view of the carrier'"'"'s travel route latitude-longitude position, and

the computer means imprints acquired local map features from the storage media on the current display in a stored alphanumeric or token format at the horizontal travel route distance associated with the carrier'"'"'s latitude-longitude along the travel route at that time.

6. The apparatus as defined in claim 1 wherein said storage data means further accumulates data from said GPS/GLONASS receiver for providing trip mileage, and associated accumulative business travel tax deduction, and trip expense report;

the GPS/GLONASS receiver additionally provides precise real time point-to-point latitude and longitude position of the carrier and time, along the travel route of the carrier;

the computer means, according to stored instructions from the storage media, computes the travel route distance of the carrier according to algorithms for computing distance traveled and total distance stored in the storage media;

the computer means, according to stored instructions obtained from the storage media, computes accumulated trip business tax deduction and accumulated trip expense deduction, and

the computer means in accordance with a spread sheet program utilizes instructions obtained from the storage media to provide on its display real time tabulation of the accumulated trip mileage and accumulated trip business tax deduction and accumulated trip expense deduction spread sheet generated data tables.

7. The apparatus as defined in claim 1 wherein said computer presents on said display from data stored in said storage media precise total velocity plots, horizontal velocity component plots and vertical velocity component plots as a function of horizontal travel route distance, as the travel route of the carrier occurs;

the GPS/GLONASS receiver provides to the computer means precise real time vertical velocity, east velocity, north velocity, latitude position and longitude position representative signals of the carrier and time;

the computer means, in accordance with stored instructions obtained from said data storage media, computes the total velocity from the square root of the sum of the squares of vertical, east and north velocities, and the horizontal velocity from the square root of the sum of the squares of east and north velocities;

the computer means, in accordance with instructions from said data storage media, also computes the horizontal travel route distance of the carrier according to the algorithms for computing horizontal distance stored in said data storage media, and

the computer means in accordance with plotting program instructions obtained from said data storage media provides on its display real time plots of total velocity, vertical velocity, and horizontal velocity as a function of horizontal travel route distance of the carrier at the same coincident time.

8. The apparatus as defined in claim 7 wherein said display additionally displays travel route vicinity locality names, street names, and points-of-interest, and other pertinent data on the basis of stored approximate position data;

the computer means, in accordance with the vector processing program obtained from said data storage media, computes in real time the derivatives of velocities to obtain accelerations, and the inverse cosine of the point-to-point horizontal travel route distance divided by the point-to-point travel route distance to obtain grade inclines;

the computer means, in accordance with instructions obtained from said data storage media, in real time computes the horizontal component of acceleration perpendicular to the carrier horizontal velocity vector as a measure of centrifugal force on the carrier, and the component of acceleration aligned with the total velocity vector as a measure of acceleration of the vehicle;

the computer means, in accordance with said vector processor program obtained from said data storage media, plots on its display the aforesaid computer acceleration components and grade incline data versus horizontal travel route distance of the carrier;

the computer means accesses those local map features from said storage media having stored latitude-longitude locations within the horizontal position display map field of view of the carrier'"'"'s travel route latitude-longitude, and automatically imprints such acquired local map features from said data storage media on the current computer display in a stored alpha-numeric or token format at the horizontal travel route distance associated with the carrier travel route latitude-longitude at that time.

9. The apparatus as defined in claim 1 wherein said carrier is a vehicle.

10. The apparatus as defined in claim 1 wherein said carrier is non-vehicular.

11. The apparatus as defined in claim 1 wherein said carrier is a marine vessel.

12. A method for providing a precise real time trip record for an object which includes the steps of:

receiving at the object radio signals from satellites of the GPS;

processing such radio signals to provide signals representative of the object'"'"'s precise latitude and longitude position, the object'"'"'s precise height above mean sea level, precise time, precise North, East, and vertical velocity components of the object;

processing the representative velocity and position signals to provide signals representative of a real time travel plot of the object;

providing a display showing real time travel plot of the object using said velocity and position signals;

computing accumulated travel route distance of the object, and accumulated travel mileage expense from said velocity and position signals;

obtaining, on the basis of precisely known latitude and longitude points on the travel route, local map features directly related to the latitude and longitude points on the travel route, the real time travel plot, and

displaying these local map features adjacent to the displayed travel plot of the object, and

producing a hard copy of accumulated trip mileage, accumulated trip business tax deductions and accumulated trip expense deduction spread sheet data tables using the computed accumulated travel route distance of the object and accumulated travel mileage expense.

13. The method of claim 12 which further includes the steps of:

defining a line segment vector, the line segment vector width and color being designated by function keys on a keyboard of a computer by using the GPS/GLONASS receiver provided latitude and longitude points, and in accordance with a vector processing program stored in the data storage media, generating a real time plot of each designated line segment vector as it occurs on the travel route, and

shifting travel route display along the x and y axis using the vector processing program stored in the data storage media and as directed by actuatable function keys on the keyboard for changing the scaling of the travel route display.

14. The method as defined in claim 12 and including the further steps of:

obtaining signals representative of local map features associated with a latitude-longitude location that is within the latitude-longitude limits of the current display boundaries, and

imprinting these acquired local map features on the current display in a stored alpha-numeric or token format at the stored latitude-longitude location for those features.